I'm not sure how you can characterize this as some creeky system that's just showing its face now lol it's built into so much of your government, multiple times a year, including one extremely high profile case (the prorogation) only a few months ago.
Honestly, be grateful. I watch parliament for some sort of fucked up cathartic release because even the worst of your MPs have a base moral compass that would dwarf almost anyone in the US government. Just the fact that Johnson's party initiated the no-confidence is incredible, I can't imagine that happening in the US - 15% of a party turning against their party representative? Impossible here.
If the cost is some silly ceremony that is increasingly irrelevant every year, pay that cost.