Not in homes. Density is a huge issue for commercial installations. The off-grid community also values user-repairabilty and avoiding vendor lock-in. Good luck replacing a dead cell in a tesla pack.
You aren't wrong about part of the off-grid community not wanting this. I'm not sure I'd want it if I were doing an off-grid install, but it does stand to grow the off-grid community to include people who are looking for a turnkey solution instead of having to do all the research to put together a more user-maintainable system.
I wouldn't expect the home owner to repair them. However they should be repairable by someone with training in how to diagnose and replace failed cells. (which mostly means a battery welder and some safety systems)