Digital storefronts on game consoles are just one method of distribution, publishers are free to press and distribute copies of their games on their own if they so desire.You surely also think that Sony, Microsoft and Nintendo must allow other stores, right?
The fact that console hardware is sold at poor margins has got nothing to do with this - it’s a just how console makers have chosen to operate and they just need to adapt when Epic opens their own stores for consoles.
But Epic is strangely quiet when it comes to consoles, even though console business is much more lucrative for Epic...
Good luck with the investigations considering iPhone’s market share. If it goes through then basically nobody will be allowed to control software distribution on their own platforms.