Ive noticed almost all of this as well. Pulse det does almost nothing now, huge ability delay or complete unresponsiveness (Cover also seems even worse), Hunker is worse and now seems to take longer to actually work (I was knocked back multiple times today half way through the duration). Flash occasionally does nothing. My crits seems to be way less even though I picked up about 220 constant power and another 80 cunning from extra augs (pre patch I could easily hit for 5400-5600 on a fellow WH sage I duel with, today did the same thing and the highest I was able to hit was about 4900). In all fairness Def Screen is a bunch of win and the new illegal mods helps a ton vs Assassins/Powertechs (and their mirrors).
[/sarcasm] Another fun thing I noticed was in huttball I'de use the vent then get ported around wildly and finally land and take anywhere from 4-8k fall dmg, one time I took my entire health 19k hp in fall dmg, super awesome! [/sarcasm]