To me, a "bro" is a dumb, fratboy version of a man, which makes the name hilariously perfect. If you're feeling oppressed and excluded by a command name, your real problems lie elsewhere.
Naming your command based on an inside joke renders it pretty useless to those outside who don't get the joke and hard to find when you don't already know the name.
Less being named from more makes sense, both are common terms and less is more. But bro as a related thing to man when it is actually something totally different is too far fetched to make any sense.