The sport IS progressing technically, with or without IJS forcing rules. This past season, we saw multiple skaters trying more than one quad in a program in men and multiple ladies going for 3+3. I don't see most of the spin positions that are regarded as "difficult" as "progressing the sport technically" and that is where we disagree, nor do I see a step sequence which fullfills the requirement for a L3 or L4 but takes a long time to accomplish and could be put to any music in the background as progressing the sport. I see many of the spin positions as performed these days that are regarded as difficult as looking strained, painful, messy, and downright ugly depending on the skater performing them. Yes, SOME skaters make the difficult positions look easy, flawless, and in some cases awesome, but most do not. They could continue to do these positions in my alternate universe to achieve GOE.
Judges ALREADY reward top skaters and hold down less "popular" skaters, there is just an "appearance" of objectivity with IJS, where people can point to the protocol and say "see, it was fair" to justify any result that they agree with and they can point to a protocol and say "that was overscored" with any result they disagree with. If this is true (and it is, otherwise there wouldn't be pages and pages on Chan didn't deserve his win, Kostner didn't deserve her silver (multiple years), Murakami was cheated, Nakano was cheated (last quadrenium), and so on), then your comment about "make it easier for judges to reward top skaters and hold down less popular skaters" by changing spins and steps to fixed base value is a non-argument.
I am not advocating going back to 6.0, I AM advocating that there needs to be a bit of a swing back to make programs more interesting and have more aesthetic value and to do that, skaters need to NOT be thinking about checking off boxes in their heads that they are achieving levels on their spins or "enough" difficulty/variety in their step sequence but are only presenting a program that the choreographer and coach has drilled into their heads with no regard to their delivery. I enumerated some of my thoughts specifically about what my requirements would be, so it's not like I am advocating going back to the early/mid 90s for the quality of some of the spins or steps or the 70s for the jump difficulty.