There is no such thing as "unnecessary" lock-in, it's just how the service is. Take it or leave it. Just because you think it's unnecessary doesn't change how that service is offered. And so what if there is work to do? Again, that is what "lock-in" is by definition = the work involved to move away.

You weigh the risks and see if the potential work (that might not ever need to be done) is worth the benefits offered today by that service. That's what an informed business does.