I'd be fine with an ironmode mode option, that wouldn't hurt my experience at all, but straight up nerfing respecs would be awful for me, I'm not a DND expert, and I had to respec a number of times throughout my playthrough to get a build I liked.
I don't think anyone is suggesting it be removed. The suggestions seem to be somewhere between make it more expensive and hide it behind a "Difficulty" wall. I'm in the latter camp. I would try to play without Withers (or as fylimar has pointed out, with Withers who only stands there to serve his role in association with an NPC story arc), but if I screwed something up, I would definitely switch to story mode, fix it, then switch back to Tactician. I prefer that the choice to break immersion be menu-driven instead of trying to pretend WIthers letting you respec actually makes sense narratively.
