My question was purely rhetorical - with just a dash of sarcasm. Couldn't resist, sorry!
Oh, absolutely - those few lines are clearly wreaking havoc on the entire Proxmox UI. I mean, who needs a functional built-in monitoring section anyway when you're already preaching the gospel of dedicated monitoring tools? Consistency is overrated, right?
@wigor mentioned that his server has around 27 temperature sensors. I might be a weird guy but in my book this would clutter the GUI. And since nobody knows what kind of hardware people run PVE on it's quite difficult to determine how to design a GUI around that fact which fits any possible outcome. You won't have a design that fits any hardware.