you make it sound like you lost your no-los spell. It just got resticted so you have to think before using it and not heal with only Forti Word.
A monster locking you wont be on your ass forever, you still have Forti word in those emergency situations when you really cant reach someone. For everything else there are 4 different heals with different range and AoEs.
You still have it and its better because you can reach further with the removal of MP cost. You just cant spam it on everyone anymore.