For me personally it's less about the how easy or difficult it is to get into, and more just the 'How interested am I really in doing this?' type deal... Not everyone is interested in raiding, and back when I did have interest, it was almost pretty quickly turned into a miserable experience when quite a few encounters in this game have absolutely atrocious accessibility... Between the godawful use of colors, and electing to try and flashbang the player.
For a lot of things in this game it's just all so half-baked, that for people who do variety gaming, you will almost get a better experience in other games, than what you will out of one that has almost completely eroded itself.