> perhaps don't tell others they don't.

Why not? I am not contesting that people like the feature, just contesting that it makes you measurably more productive.

I like how I can move the text cursor around on my iPhone by holding the spacebar down but if they removed that feature I am not going to be measurably less productive.

Grouped taskbar items only affect mouse users in the first place. Alt+Tab windows aren't grouped. Or at least, not on any version of Windows I've ever used, which admittedly doesn't include 11.