It’s a good feature, and probably makes sense to default to on. But I know I’ll find it more distracting than useful, so I’ll turn it off.
Large tooltips on mouseover are usually distracting. Facicons, text, and additional windows do enough to remind me what my tabs are.
New features often aren’t helpful to each and every user, but as long as I can turn off the ones that are actively unhelpful to me, I’m perfectly happy to see them.
You may have misread the comment you’re responding to. Peas and carrots go together