I struggle to see how any open-source project would accept this kind os PRs, the tools seems ok for research, but not a good ideia to push PRs like that open source projects.
I have to say, the maintainers handled it with grace though. Didn't sass the company for it or anything, politely declined the PR, closed it, locked it and moved on.
It reflects back on them really well.
I've never used Spring Boot, but I have to give them credit for this. I don't know that I'd have similar restraint