It's unfortunately the frontline meta because its very easy to execute. Salted earth just needs to be looked at and tweaked so its not as overpowering. I honestly feel like they should look at limiting the number of players able to be hit with AOE skills and take it from no cap > a much lower number (5? I'm not sure but thats the devs job)

On the other hand you can counter drks by silencing them if you wait till they plunge in and try your best to stay spread/use guard when there's no other options.