[RELEASE] Z-Wave Firmware Updater

I'm new to Hubitat and I'm curious, now that the C-7 has a built-in Device Firmware Update App (with instructions here), are there any reasons an owner of the C-7 hub would use this Firmware Updater vs. the built-in one? I ask partly because Inovelli's firmware update instructions point to this Firmware Updater, and don't mention the built-in one, which seems like an endorsement of this updater, but it could just be that the instructions haven't been updated for the new app yet (or they wanted generic instructions for all hubs).

PS: I did skim through this entire thread, and didn't see a direct answer to this question, but I only skimmed, and I could easily have missed one of the 1351 posts before this. If that is the case, sorry.