This is the most amusing part of Hard Raid crota to me.
There is literally only one raid weapon I care for and that's Abyss Defiant. And I don't even have to bother with Crota to get it. I can just run the beginning parts until I get it and then I don't have to bat an eye to it.
I can't make myself give a single shit about hand cannons unless it's PVP where they're absurdly overpowered compared to every other weapon so I don't care for fate bringer or word of crota. And Necrochasm probably sucks shit so why care about it.
And finallyyyyy, the cherry on top: none of it matters because once House of Wolves comes out all our work that we've put it will mean nothing because you can just progress past all of this content without ever having actually done it. We'll replace most of our weapons and gear within a few days and none of it will matter.
Their handling of this game's progression is atrocious (just like most MMOs!)
I would say player skill factors in to it a degree, yes.
...Yes? This is the problem I usually face when trying to deal with coordinated groups. Most people aren't good at it. I've gone through plenty of MMOs knowing this and it takes a long time to weed out who is just bad and who is good and can actually work together.
edit: I'll reiterate and say (again) that Destiny has more bugs and issues than your standard MMO raids which are generally very polished out and smooth running (and you basically can't "cheese" due to the nature of Tank-Healer-DPS).
Of course, bugs and shit are a problem. But a lot of the time it also just comes down to people not being capable of adapting to them in the moment.
My point being, you can't blame one person because he hasn't had luck molding a decent raid team. With all of the problems this game has that's a feat in and of itself. Hell, my original raid team from VoG disbanded and was really good, but enough people got tired of the problems with Destiny in general to call it quits.