That is repairable by the standards of Apple computers, not the standards of open hardware.
My experience dealing with a Chromebook deployment mirrors one of the grandparent commenters: 90% of the problems are broken screens, Screens are quick and easy to replace if you have the part, but screens cost money and you'll never had as many as you'll eventually need. You'll have extra parts for everything else because of the staggering number of broken screens.
I have an occasional side job dealing with PC/laptop/Chromebook repairs at a local weirdo private Christian Academy. Given that the place definitely seems to have a "go pick the stick I'm going to beat you with"-vibe, I suspect there's actually fewer broken systems than I might see from a similar deployment at a public school. Chromebook screens are still the biggest problem. One of the reasons I got this side gig is that an acquaintance saw the number of devices being written off and just assumed their day-to-day IT person couldn't possibly know what they're doing.
Anything else Apple does, unless their screens are indestructible or only cost $20 to replace, isn't going to help with that.