What is the problem?
The people complain, that the drg is to busy in his burst time.
The only 2 solution would be, to increase the timer. Or, to reduce the usable skills.

They choiced the second one. And for me does it looks ok.
Good, its true that whe has less to use in early lvl with that. But for 90+ is it now enough. Esspecialy, with the potency increase, to cover up the missing ones.
Maybe, they could have reduced it to 2 times, as a middle ground. But for the moment does the change looks ok (its more funny for me, that the spear throwing skill has now a combi with our back jump).