I don't think we should sacrifice the innovation and development of an entire industry on the backs of a tiny vocal niche of people who claim they want to repair their own batteries. If there was some standard form factor the entire last decade of the e-bike industry would never have happened. We'd be stuck with the Yamaha/Bosch/Shimano-style battery pack sitting inside the triangle, and we would not have the superior integrated systems of Trek and Specialized.