I'm a main machinist in PVP, so I can compare a little bit for that job between the past seasons.
On this season, I feel like MCH got a huge nerf, while it was not even considered an "OP job" before. Yes we do a little bit more damage now, even if our lb didn't benifit any boost while every jobs got their HP pool increased. Full Metal Field is a nice addition to the rotation, and everything else is mostly the same.
I'm not concerned about the damage, I usually ends up in the top 3 of any match I do, and it's not way bigger than any other jobs, so I don't feel the problem is here.
But, the problem is more how easy to kill this job is now, with no mobility skills and honnestly very few Cc. Yes, our shotgun got a small pushback, and yes we can stun if we analyse and happens to be with our Air anchor skill on the rotation.
Before 7.1, it was doable to a MCH to 1v1 any melee job for a while, and even win some of those fight. But now, it feels that every melee job got a huge buff of damage versus the few HP we got in out HP pool. Most of them can stun you, charge you, have mobiility skills and cc, while the mch got almost nothing. Kiting a melee is now almost impossible as, if you are just in 1v1, it will end killing you, because he got more Cc and more mobility than you have, and more HP for about the same amount of damage.
The HP increase on MCH was probably too low versus the damage of any melee dps. And maybe we deserve a mobility skill too, maybe not as much as a melee because they need to charge in to get in close combat, I get that, but, in any other game, a range dps can kite a melee dps. It feels like it's impossible to do that now.
I'm not talking about the case where you use all your CD and mana in a fight and get chased down, that's totally legit. I'm just telling that now, MCH vs any melee in 1v1 ends up dying easily.
I have arround 350 match this season, I don't pretend to be the most skilled MCH but I think I'm decent, and I almost never win a 1v1 fight in practice in wolf's den vs a melee. I manage to outplay one sometime, but it really feels like we have a huge disavantage since the patch. I was not struggling like that before the change.
So yeah, it feels like the MCH got nerfed a lot by making him too easy to kill. That's my opinion on MCH right now, I don't know if it's shared with anyone else...
I'm still playing it because I like it, it's just way harder to win and play... I am almost back in platinum too, I have hopes that this time the queue won't be dead when I'll want to play as a plat, last season that's what killed me from doing pvp.