I'm hardly bullish on West Ham this season, but the dramatics are a bit over the top. Barely pacing above relegation would be a major nosedive and the relegation sides this season are so much worse than last - West Ham is comfortably a level or two above like 5-7 sides this year. And it could be argued the level of finishing last season was a blip with the way they've managed so far.
I suspect it's mostly just the way they play that propels the negativity. And believe me, I get that more than most. Still, that Brighton match was a prototypical counter-attack game. For all their shots, Brighton were hardly perpetually dangerous outside of spurts and the West Ham finishing was deadly.
If they keep taking their chances, they'll be fine. The wild card is what happens with Paqueta's investigation, but I guess nothing happens on that front until January.
That's why he shushed them after the goal.