There’s several threads about this already, you can always look in any of those for pages and pages of arguments if you’re interested. Here’s a link to one of the more recent/active ones:
That said, and to summarize my opinion, I’d welcome a reduction in thrall power with open arms if and only if being a solo player remains viable under official settings. Because currently that’s what thralls make possible.
Exactly how to make sure that remains possible, well, the most obvious one would be an increase in the player character’s combat prowess, though obviously that screws with PvP balance which (as I understand it) is already overwhelmingly favoring the attackers over static defenses.
The problem, as always with this game, is that it’s a schizophrenic mess of several gamemodes in one, and they rarely play nice with each other.