The ‘big 6’ is just a Sky creation. From the start they’ve seen the PL like a soap opera with main characters and supporting characters and they still sell it like that.
It has very little to do with performances on the pitch - succeed or fail the narrative is all about those six clubs. Just watch Monday night football when two ‘other 14’ clubs are playing - they’ll still spend the first 50 minutes of the pre-match coverage talking about whatever the current drama surrounding a ‘big 6’ club is.
There’s no point trying to rationalise or change it because it has always been artificial.
As passionate about my own team, much less bothered about other football