well it really depends on your definition of technology
none of these items uses any kind of advanced energy generators, only majick to power them. While it seems the corpse mashers and elevators use gears for locomotion, the original power for such actions comes from majick, and therefore isn't really advanced. If humans had access to a nuclear reactor or even a simple battery back in the Middle Ages, we could have much better technology now, but since the TES universe doesn't need any kind of power generator, just majick, their technology has to be graded on a different scale. When Mephala calls me up on her IPhone, ill say they are technologically advanced
I disagree.
Battery technology has been around for far longer than the European renaissance. The problem, is that many people are terrified of new things. This last century is unprecidented in the number of new technological advancements that have been made, and moreso by how willing the world's populations have been to embrace such advancements. It has never been this way before, as far as we can tell. Even in the golden age of Greece there was a strong undercurrent against heavy industrialism, and a powerful over current to prevent the spread of advanced knowledge to the general public.
There is a reason why the "Great Thinkers" of such eras were "legendary"-- it was because access to the knowledge was greatly restricted.
However, even today there are people who rail against the totally free exchange of information-- major government leaders being key proponents of such notions. Even today, not just ANYONE can tinker with high voltage technologies, or with new microcircuit design. It is still highly controlled.
As for technology in the TES universe, I will agree there that the NEED for a nuclear reactor just doesn't exist, given the number of absurd enchantments I have seen floating around-- the energy requirements to accomplish something similar with our own technology being astronomically high-- and often times found in cute little trinkets no less. (what I could do with a handful of CE shock damage enchantments would make your head swim... but I digress)
Part of the reason why we strive for more efficient, higher quality technologies is because of the innate limitations on available energy resources we must endure. We invest huge amounts of money and manpower into this, so as to better utilize the energy sources we DO have. it is also the reason why we are exploring fusion technology and friends. The people of Nirn don't have that problem. Even if they totally enclosed the sun's star-hole, and gobbled down 100% of the energy bleeding out through it, there would still be an infinite quantity leaking out through the other star holes, and magicka would likely not be too adversely impacted. In short, there is just no shortage of magicka, so the only innovations in terms of magicka consumption would come about from fixed charge devices, or in ways to improve a person's individual control over magicka, as both of those are limited.
Necessity is the mother of invention, and magic indeed does fill many needs. It does not fill all of them though. I still want to see a magickally powered horseless carriage, as it would solve several logistical problems in supply movement, commerce, and the like. The problem is the "unspoken rule" that Tamriel must remain in the dark ages indeffinately, because if it did not, it would not be a "Sword and Sorcery" setting any longer.
I consider that genre stereotype to be boring. I dont think I need to point out what MK has to say about boring things either. Not here anyway.