All this reminds me of is how hard the 800m is to get right - especially indoors.
You aren't wrong in this assessment. Getting into a contest for position in the 800m is extremely overrated and unnecessary running indoors - we saw the impact of that opening 200m (24.60) really hurt them in the final 200m as nobody even broke 27.0 and especially Miller who barely broke 29.
It's not the 400m and you can make moves in the 800 - especially if the guys who are blazing off the line (invariably) falter in the final 150.
But the killer move (I actually thought it would sink them both tbh) was the double overtake in the middle of the race. The energy to surge past someone and then essentially consolidate back to the pace you were running beforehand, really comes at a massive cost and I think we saw that as Crestan nearly capitalized. I have to agree on this - if Brandon Miller thinks that is running for gold, then he is going to struggle to ever win many.
This being said and back to my original point - things happen so fast in the 800 you only have split seconds to do what you think is right. Miller I think had it subconsciously in his mind that he needed to control the front of the race no matter what and any chance that arose he was going to take it. Can't fault him too much for that when you are running like 8+ meters a second and basically using all the oxygen in your body for running. When Hoey dropped his tempo a little in the middle, I think Miller subconsciously just made that move though I remember when Hoey came back at him I was like " you absolutely have to hold him off and keep going here" - which of course he didn't and I guess the rest is history.
So no, not a tactic masterclass, but we should also give them a little leeway out there because it's really not easy - especially in that event.