I haven't seen any PvM nerf in this latest patch? Tamers are pretty funny; I walk into a dungeon and everything is dead — it looks like WWIII just hit, and I know there's a tamer somewhere.
The thing is: over the past 4 weeks I would say maybe 70% of players I see farming level 3 are tamers. Gradually everyone sees how powerful they are at PvM and drifts towards building one. It's a difficult thing to balance... I'm aware they take a whole load of gruelling work to level, and you have all the effort a massive amount of players have put into them; I'm not sure what the solution is.
As the server ages, and people have more and more time to invest into their characters and accounts; gradually people will aim to have a PvM tamer just because of how efficient they are. Here's an example: at Lyric 9 (and it it will be the same at 12 with gold mastery links, the power spike just isn't that much), let's say I walk into the end room of Ossuary; the Lich Magus, Phoenix, and all the other human mobs are up. I better be damn careful how I clear the room. It'll take time, and on my farming routes I often skip mobs I don't find efficient enough.
Whereas I see 120 Tamers just rolling through dungeons and obliterating everything. They have higher GPM, more chance at specials, and don't even seem to really do anything (I could be wrong here!)
Then let's say that I play Outlands for 6 months, a year, more! By then I've decided to try out tamer for its farming speed, and guess what; so has everyone else. Every dungeon becomes a stomping ground of 120 tamers trying to find farm. That could be pretty sad?