Like I said there were tactics but now the power scaling is out of control.You can't compare the strength levels and tactics used in the Obito fight to now because it spiked massively since then.
The spike was just recent though. Even recently in the Guy vs. Madara fight, Minato was able to give an analysis of the truth seeking balls, their weakness and devise an effective strategy to get them away from Madara. You think that this is not tactic? What about the part of this same plan that involved Kakashi warping a whole into the shield so that Guy could even get in that last hit with night elephant? That was also tactic!
I guess Sasuke's analysis of limbo wasn't tactic huh?
Like I said, there is plenty of tactic and there is surely plenty more to come (especially against Kaguya).
People are just too busy looking for something to hate on, so they just ignore the obvious strategizing for the sake of bashing.
And yes, there are going to be some pure power moments. You can't expect every single moment to involve a lot of sitting down and contemplating.