discs that have been coming out for a long time (longer than Ive been playing) are not very conductive to a touch game.
super stable to overstable putters... everyone throws max weight... max weight is really several grams over max weight... everyone wants new/durable plastic... etc.
all factors are stacked against developing touch.
being a wizard thrower, the touch anhyzer is one of my bread and butter throws. it makes me want to cry when i try and teach someone how to throw it and they still haven't figured it out after 200 throws and 2 hours of work.
i would say that the discs aren't conducive nowadays to developing skills in general and not just touch. while newer players throw farther today than they did 5 years ago, i would say back then players developed 3-4x the number of disc skills in their first year that players do now.