Bah if they truly rebalance everything, even 90% may be over the top. If it's too high, every other profession will complain about how hard it is to kill a soldier, and ask for nemesis nanos, nerfs, etc...
Clearly, we have the choice between an old fashioned high reflect AMS, (which means all CC professions root/snare us and go away, others just avoid us or somehow tank us (docs, Enfs, fixers)) and something new.
When TMS first came out, the normal attack hits actually mattered, there weren't nemesis nanos, people had less run speed, etc. Given the fact we have the least run speed, no NR etc. I find it pretty frustrating to be the big reflect fortress, slow as hell, that everyone avoids for 1:20 mins.
All in all, I would definitely trade a few %, even more so if it makes others profession stop complaining, against a bonus in say, Nano resist, HD, Crowd Control nano ressists, etc.
Would be nice to be less of the fool stuck in a corner with his ubah shield up, not able to do anything, and more of a mobile soldier, resilient for a given duration but vulnerable the rest of the time. (in the case nemesis are reduced ofc)
It seems easier to balance a soldier getting a balanced AMS, useful against any profession, than a soldier getting a crazy AMS making him totally invincible against some given professions and totally useless against others.