You're missing that the programming environment needs to be scalable to 50 or even 500 collaborators. Arguably bash and excel struggle at scaling non trivial pr

You're missing that the programming environment needs to be scalable to 50 or even 500 collaborators. Arguably bash and excel struggle at scaling non trivial problems to 15 collaborators. A surprising number of programming environments do even worse, notably visual or pseudo-visual ones, but even some textual ones.