Based on rudimentary calculations I think that means most professions can only hope to reach 8%, maybe 9% for some infantry symb users or professions like soldier and fixer who might wear CC and (for some reason) have a higher IP cap for riposte. And then possibly another 1% further to Keeper and Shade from buffs and perks.
So will most people spend 1m IP for the equivalent of permanent 1.5% reflect and 3% chance for AS/SA to miss completely? I suspect they will all try