It was inevitable, but even at the cost of some people not being able to set their phones up (not by choice, but out of their hands due to being international or their plans/vendors/some weird programming on the number itself), the benefit outweighs the inconvenience. There really isn’t a full-on way to stop botters until idiot players stop making use of their services, but this was an admittedly huge step in the right direction.
Hopefully, in time there’ll be an alternative for those in the situations I listed above.