This is a very misleading title, the CEO of Unity didn't promise 'Uninterrupted Service'
The only thing he said was:
We have a great relationship with Apple and will do everything we can to comply with Apple’s TOS (also, these are ‘beta TOS’, and these easily get changed) so that we can provide uninterrupted service to our more than 120K users.
Which means he will do everything they can to comply..the final decision is still in Apple's hands.