No, not whatever, everyone of us have different user case scenarios. We started talking about the OP issues and we ended up discussing about you changing your batteries in the comfort of your home while I have to ship mine.
For Tonga, having to send gear for service might be a nightmare, that's clear.
As I previously stated and someone interpreted wrongly. Both solutions have pros and cons.
For me, having a warranty in case something goes wrong is less problematic than flooding the DC or transmitter because of user error and having to repair / buy a new one. My Cressi Digi has a self replaceable battery but it costs 150€ not 1000€.
Again, if you prefer to service your gear on your own, great but making having to service your diving gear every 2 years sound like a HUGE issue is a weak argument when 99% of people send-in their REGS for regular maintenance.