Why... not? Git just works for syncing data and version control and we're all familiar with it. It is also secure, reliable, available everywhere, decentralized, with built-in access control, deduplication, e2ee with gitcrypt... In short, it is great.
The problem is performance in some use cases, but I don't see anything fundamentally wrong with using git for sync.
Git wasnt designed for generic binary blob handling. Sure, if you repo is small and you set proper .gitattributes, it will work fine. But I would advise to use generic DVFS for such task.
The problem is performance in some use cases, but I don't see anything fundamentally wrong with using git for sync.