I think a lot of people are taking the Blog Post out of context or just ignoring the main point.

He's basically arguing that

A) Hardcore players tend to find mechanics driven fights boring (Arguably true)
B) Casual players tend to be incapable of coping with them (Likely)
C) This disconnect leads to people being booted/inability to find a static (100% true)

Nobody wants to be held back by the one guy who doesn't know what he's doing. One person can ruin your entire raid with a screw-up. That's why there's 0 tolerance for mistakes and every PF for Coil or Extreme Primal level content above T5 or so is "Make 3 mistakes and you're gone".

I don't think mechanics should be removed, but at the same time it's basically more of a memory game with 8 people than an actual game where you're reacting to things. FF XI was largely a tank and spank game, but the encounters still felt more "skill" dependent than in this game because you could literally carry encounters by yourself even if other members (Who you would just have to pick-up off the street in many cases) were under-performing.

In FF XIV you can do everything right but if someone else whose effort and survival is completely independent from your own dies you're effectively headed towards a wipe in probably over half of end-game encounters. If they continue to die your only solution is to just be stuck there and frustrated until they can learn or to boot them and find someone who can perform. You're telling me that's not a toxic mindset to be promoting?