[MrRoboSteve]

Selecting an "alternative" programming language is a tradeoff -- while you get the opportunity to learn something new, you lose the large amount of support resources that are available for the three supported languages. For most teams, that tradeoff isn't worth it. And, even for teams that decide to go the alternate language route, it's unlikely to have any significant benefit on performance or development time -- the supported alternatives have those bases covered.

A more impactful use of teams' time would be to collaborate on developing an open source library, built on top of WPILib, that automates common robot tasks. Students would learn API design, which is a higher level skill than learning a language. The FRC community would benefit from having a shared codebase, developed and refined over the years, that would help more teams build more sophisticated robots.