This is the wrong objection. If only 10% of users lose 5 minutes each, that's... 19 lifetimes' worth of man-hours, which is still excessive. The real reason for

This is the wrong objection. If only 10% of users lose 5 minutes each, that's... 19 lifetimes' worth of man-hours, which is still excessive. The real reason for not doing rebootless updates is that they're hard to implement, and hard to implement in such a way that they create a risk of problems much bigger than losing 5 minutes (like data loss or security vulns staying open).