I'd be excited to have meaningful Sharks hockey soon, but I just don't want to see management take shortcuts to get there. Because if this rebuild were to top out at just a fringe playoff contender--and then another rebuild were to have to then take place--I'd be awfully disappointed. But that just means I don't want Grier trading away picks/prospects for short-term fixes. So far, he seems to be showing he has the right temperament to handle this very trying and painful part of the rebuild.
As for the Hertl trade, I agree that Grier was always interested in such a move. I just would be a bit surprised if he expected someone to come in for Hertl now, with so many years to go on that contract, and especially after Hertl had to have another knee surgery. So yeah, I think he jumped at it once the return got to where he wanted it.
The more time that has passed since the deal, the better I feel about it. Part of that is the return, and part of it is Hertl not having played. I'll mostly ignore Vegas, so that will help going forward, but I imagine the disgust is going to linger a lot longer for you since you can't do that.
