In the starting area I could see that simplifying a few encounters. But it's also burning two actions for a single heal that probably won't be able to keep up with bigger hits instead of pumping out your own damage, so the trade off may or may not be worth it (especially as fights get more difficult).
As for TP, I actually don't know how it's meant to transfer between battles. That's an Rpgmv thing I need to look more in to.