Defeatist for no reason - in a game of fine margins the one who's in charge of the pitch-side of things doesn't see any of them and doesn't think there's problems, we drop points.
Say he took Maupay off earlier for either Danjuma (weird sub imho but ok) or any of the youngsters and the game ends 0:0 or we actually go on and win - 1 point and a decent start, or 3 points and a great start. Promising.
Instead, persist with Maupay for ages (because apparently we can't start young players as that's what random GOTers tell me), play with no striker effectively for 70 min (with the added bonus that we're definitely just hoofing it forward to no one if it wasn't Maupay, as we only play on the ground with him and Gray and everyone else just gets the hoof treatment because they're tall, which is another Dycheism), lose the game to a soft chance because they actually subbed on a forward who hit the target; 0 points, crap start.
Stack those up and we're back hovering around relegation come April/May again.
I'm not asking for him to be some kind of god manager, just... to use his brain a bit, you know?
As a side note - many sides have even won things with crap owners doing whatever they want or siphoning the club, or have done better (or average) because the team's manager(s) were decent. We're not the first and won't be the last and to hide and deny Dyche's ineptitude behind the ineptitude of the owners is silly.