Whether we consider "tactics" first or "position" first...it really does not matter...what matters is that we consider both before we make our next move. Sometimes we may need to change our strategy given what is immediately before us (current tactics)...it is not an "either/or" situation.
I think I finally found a way to say what I mean... it's an efficiency problem. As long as the tactics you're looking at are forced in the position then they are necessary to calculate, and I would agree it's time/energy well spend when doing so.
But there aren't many forcing tactics through a game in terms of every single move. I think a lot of amateurs look at a whole bunch of "hope tactics" during a game and they end up making a lot of moves that don't do anything. They even end up setting up their pieces hoping their opponent will fall for something.
I understand even many class players realize not to make a move based on a hope tactic, but even so it's time wasted calculating it. When non-forcing tactics are involved, that have to do with what squares your pieces are going to, it's best to look hard at what's going on before you start to calculate. For example if you realize your advantage and practical plan is in mobilizing your king-side pawn majority, then before you start to calculate you can skip over a bunch of non-relevant tactics having to do with your opponent who has started to maneuver against your weak b pawn. In fact, you can start looking for positional tactics to remove his nasty knight that's holding up your kingside pawns from rolling down the board.
They're meaningful moves that involve tactics and your opponent will have to respond to them, but to find them you have to assess the position first and look for tactics second, does that kind of make sense?
TAM is fairly new, but I believe Silman suggests reading TAM before HTRYC, if planning to read both.