I've seen companies automatically patch software (there was a CI pipeline that would clone upstream, automatically apply a patch file, and ship the result), so it's certainly possible to pull+patch without looking at specific changes, let alone watching for a relicense.
And? What's the point? That companies can be stupid?
If you don't upgrade literally nothing will change. If you have upgraded and noticed the license change - downgrade. Or just use it anyway, if the value of Minio is worth it.
