That would be taking the company away.
I built my entire character around the company and the lore of the company. To me this is like saying "Why not remove canon planets". You want to RP a Hapan? Nah dawg can't do that because Hapan is canon and can't be RPed. And once again I've actively encouraged other RPers to join in and RP with me. I've tried to make accommodation to people over the years so everyone can get their toys and I've never said someone can't post the company as a manufacturer. I like the canonical backdrop for RP just like some people like to RP Hapan.
I feel like so much of the point of RPing in an existing setting is to explore what already exists and to expand upon it.
Otherwise why bother with a Star Wars board at all? The existing lore is what brings people here. And the ability to make it ones own and build new stories in that frame work is a huge part of the appeal. While I might not personally feel that connection to companies in particular, a lot of people do.
I think this would stifle rp freedom. If someone doesn't like canon companies/doesn't want to use them they don't have to! We removed the limit on character ranks despite there being people who don't want to play instant masters. Don't like canon companies? Don't use them. Like them? Explore them.
That is one of the strengths of chaos, and this would be a step backward.