I have no real problem with the 7 day life span of files there, but since I actually do put quite a bit of "temporary context" into /tmp, it's a bit annoying to have it wiped out on restart.
Now, yes, of course, I can simply create a new folder, create my own 7 day sweeper and be done with it.
The simple nut is that I've been using /tmp for 30 years (like vi, every unix machine has a /tmp), and it's a bit hardwired into my muscle memory. And since the machine is supposed to do my bidding, not the other way around, it would be nice to be able to configure it to not do this.
But, hardly a crisis, I'm coping.