I can know something is good or bad without trying it out due to past experiences. I don't like bananas, someone tells me I got to try this drink called the banana mama cow. Guess what I know in advance chances are I wont like it, because I don't like bananas. And hey after testing the theory, yes I don't like it. An architect might see a new and changed design but due to his experience he can tell it is an ineffective use of space or isn't structurally sound he doesn't have to build the building to see it fail he knows thanks to his experience that it isn't a good design. I love spell making it is one of my favorite parts of the elder scrolls game. Magic might be changed so casting spells is insanely more fun it might be the best spell casting system EVER. The end of the day though the removal of spell making(if it is gone) is not a good thing for me because through my experiences I know I loved it and not having it will remove an important feature to me. I might overall prefer the new system, but the new system + spell making would be even better to me, so I am stuck with knowing spell making being gone is bad for me. The removal of attributes can be logically and not out fear argued against. Perks might cover some of it, but they might not cover the level of granularity that someone appreciates, or they might think the general idea of being stronger than the next guy is an important part of character customization. People can rationally dislike changes, they can fear things staying the same just as much as they fear change, and no change is not good in itself.
While a perfect example of human capacity for being self-centered and biased... this doesn't really go on to prove anything other than that you have an opinion, and are capable of making judgements based on past experience. This is all fine and good... but it doesn't say anything about change, other than that you have an OPINION on change.
You don't like something. Something new comes along, and it has something you don't like in it... so you immediately assume you won't like it. This assumption colors your interpretation of the thing in question... Banana Mama Cow, for instance... and now, surprise, you don't like it either. You don't even have to give it a fair shake, you just have to tell yourself you 'know' better.
Skilled, professional architects told Frank Lloyd Wright he was talentless... he was disrespected by his peers and even involved in physical altercations with his co-workers during the early years of his life. He is, as we know now, quite an innovative and remarkable architect and designer... but we would never know this if his choices hadn't proved to be popular.
Opinion does not dictate whether something is "good" or "bad"... just whether it is popular or not. You can make as many arguments along a similar vein as you like... but at the end of the day you only prove that you are assuming your opinion dictates quality.
Quality is not something that is defined. Quality is something that -defines- other things... and change is a Quality of our world. Experimentation and innovation, evolution, imagination... all of these are the procedures through change takes place. The change itself is not bad. It is, in fact, inevitable... an unavoidable Quality of the human condition. We are, for purposes of survival, taught to be wary of change.
Not all changes are beneficial to us, on the individual level.
Not all changes are harmful to us, on the individual level.
We can assess these changes, and infer from past experiences what is or is not something beneficial to us... but those inferences are nothing more than the formulation of an opinion on the matter. And these opinions are not factual interpretations of the world, but rather the guidelines by which we live our lives without being swept away by the ever-changing reality around us.
It is beneficial to you to have your opinions. You need them, in order to form an identity... in order to truly enjoy some things... in order to truly despise other things. Your ability to formulate an opinion, and consciously make decisions are crucial to the survival of our species, too.
But again, it is important not to mistake these things as being the truth in-and-of themselves. They are but a filter through which we view the world.
Change, in true paradoxical form, is a static quality of dynamics.