What do you mean why? It's a convenience that they can charge for. I dunno if you were a WoW player, but corpse running was a pretty common activity. If they put in some sort of way to bypass the corpse run, it doesn't mean that's why corpse running was invented in the first place. It's been part of online games since forever.
There's a balance to things like this. Remember, you can spend literally hundreds or thousands of hours playing this game and not pay a cent. If that means other people can pay for a convenience that'll save them a few minutes of time, to me it's not a big deal in and of itself because I'm playing an entire MMO for free with no subscription. Gamers tend to be pessimists that see every glass as half empty while also having a heavy sense of entitlement.
A FREE game, and the only thing I gotta deal with is stuff like doing the same corpse runs I've done in every other MMO ever? The same corpse runs I expected to do in this new game? Big meh from me, dawg.