Well there is a point to this
Code primarily is read by humans, and in fact comments are more commonly read than the actual code. So it makes sense to improve their readability.
And those are tiny things, but they are probably defined in some style document everyone touching the kernel should have read. It's a common argument that if someone doesn't even care about such small things, they probably haven't read the rules. It's like with that band that, somewhere in their specifications, had the rule that there had to be a bowl of m&ms, but no blue ones. If they found blue m&ms, they knew that their specifications were not read properly.
Just like with a concert, where a problem with the strength of a stage can lead to disaster, problems in the Linux kernel can be highly problematic.