I've had a company give me full admin access to their cloud account. Thankfully, I learned the lesson earlier in my career and immediately created myself of more mundane user. Break glass access is important, but definitely not as the usual level of access.

> I don't see why the DOGE team would need anything more than a read replica to query.

They shouldn't need more than limited read access. The fact that they have more access, very likely demanded and not accidentally given, is due to their intent to do more than simply query data.