One possibility is the reduced SLA is to account for code bugs / youth, not for any expected difference. They might expect to be just as good as regular in the

One possibility is the reduced SLA is to account for code bugs / youth, not for any expected difference. They might expect to be just as good as regular in the happy path, but are under-promising out of fear of some code-bug or other issue. Either way, I'd definitely not migrate too soon for exactly the above reason.