So you're telling me..

[Kolsykol]

It definitely is. I can't play black mage worth a damn but lots of people out there can go to town with the job. Other people can't deal with the APM requirements of Ninja but I've never had a problem with it. Some people had problems with the kinda rapidfire mechanics of e4, but I find it fun and easy. Any mechanic that makes me look at the arena edge will probably murder me though.

That's not what people are talking about when they're talking about complexity.
People are talking about stuff like SAM Tsubame-gaeshi in SHB.
It's objectively less complex and involved now with two stacks than it was before, that's just a fact.

I actually like the two stacks but just because I like it better doesn't mean that it isn't less complex and that I don't understand why there might be SAM mains who dislike it.
To some extent I feel that way a little too because I do think that it felt rewarding to adapt when you ended up drifting and lining things up correctly and precisely.
It doesn't feel rewarding now it feels brainless.

It's the same on MNK, there was a lot of thought and preparation that went into lining up the burst phase the moment you drifted away from your '' dummy rotation '' player skill became more involved and important and it added complexity to the Job.
Same on BLM, you have a ton more mobility now than you did before and it inherently makes the Job less complex in the context of difficult content.
Again that's not to say it's inherently a negative, I've actually been focusing on gearing BLM along with NIN in EW I'll have bis next reset and I am strongly considering maining it.
I love BLM in EW I've had the most fun on it in the Extremes.
But BLM is less complex now than before.

It's still complex imo especially with Ley Lines but it's definitely less so than before and you have more '' fail safes ''.