Imho PTH cap isn’t necessary I would leave it obtainable if someone want to build it like that, but by changing some other stuff those kind of builds would be highly ineffective when it comes to killing speed. In other word if someone want to achieve immortality let him be but by achieving it he should be forced to sacrifice so much offense that his killing speed would be close to retaliations build killing speed when facing ranged enemies. I hope you get my point, uber unkillable slow killing sped tanks on one side of spectrum, uber fast killing glass cannons on other side and much wider space in between for making/balancing builds than it is now.
On contrary OA stacking is almost as easy as DA stacking if not easier. To go back bit in GD past, when lvl cap was 80 2.5k OA was widely considered as minimum requirement, now lv cap is 100 and still 2.5k OA is widely considered minimum required. In mean time minimum DA skyrocketed from around 2k to more than 3k. Isn’t that huge disparity that is screaming that OA requirement should be at lest upped for few hundreds?
I dont see how that hits badly anything it just force you to reconsider your defensive options and actually use to some small extent offensive approach even when making retaliation tanks. Not to mention that even before AoM I had retaliation hybrid with ~3k OA and it worked nicely, not so tanky like his brethren but with smart gameplay more than capable of putting down anything.
When I touched gameplay I have to write this also, I cant shake of feeling that people in GD community became somewhat lazy and they all want to have build that is capable of crushing anything on its way w/o much effort or player skill. It seams like everyone wants to play with one hand in the pocked w/o thinking and just go around and smash everything to smithereens. Anything less than that is deemed as to hard. Whats the point in not having real challenge in making build as well as in playing that build?