When did I ever suggest PC is locked at 1080p and 30fps like consoles? What I did state is that the visual fidelity of Fallout 4 is the way it is because of BGS wanting to achieve 1080p and 30fps on consoles. PC will not suffer from such performance and resolution limitations, but we will still have the ugly low resolution textures as a result. Your argument of "alienating a large percentage of fans" falls on deaf ears as there are plenty of games I mentioned that are multi-platform and that are visually superior. The underlining point is that BGS is making lame excuses without credible justification. Again, it's a non-issue for PC gamers as mods will undue any low resolution textures with HD texture packs.
Most games do not matter anymore not because they aren't "graphically up to date," but rather they did not age well in general. With the exception of a few classics, such as The Legend of Zelda: Ocarina of Time, very few games are truly timeless. This is a rare quality that most games do not have, which is generally why we see HD remasters or entire remakes of older games to bring them up to today's standards. I'm more than happy to play pacman, pong, etc. That doesn't mean I think every single game created on the Super Nintendo is still a masterpiece and rivals the standards of gaming today. Times have changed and expectations have changed. Those games are fine for their time but not necessarily for today.
Game development is driven by always constantly improving. Even with consoles having their hardware limited and stagnant, Sony and Microsoft purposely do not unlock the full potential of their consoles for long term retention purposes. Technology is always improving. Developers are always creating more powerful engines. Customers are not the ones driving graphical fidelity, it is big business that does so. I fail to see your point of how obscure Japanese games that have been in development hell for almost a decade are even remotely relevant to the industry moving forward. Final Fantasy XV, formerly known as Final Fantasy Versus XIII, is a perfect example of a game that has been in development even longer and has undergone major technological changes. The same was the case for Final Fantasy XIV. Graphics do matter and games that have been in development too long will in most cases receive upgrades.
You have also claimed BGS has ruined the spirit of the Fallout franchise, yet they have expanded upon it and made it much more popular than it could have ever been under Black Isle/Interplay. Lets also not forget your very obscure and extreme definition of what an "RPG" of which likely few share. You not caring about graphics does not translate into the majority of gamers not caring about graphics.