Alright you bastards, here's an ultimatum. They can't use Captain Marvel in marketing but that can still be his name. Call his run Shazam and refer to him as Billy Batson or the World's Mightiest Mortal in descriptions or marketing and have people still call him Captain Marvel in-universe. He's part of the Shazam family, the Wizard doesn't have to be named Shazam but he can be, it's just the magic word that Billy uses to transform and is an integral part of the mythos so it shouldn't matter if it takes center stage in the marketing.
They did this in Superman/Shazam: Return of Black Adam, so there's no reason for them not to do it right now. Now stop arguing you ass-mad autists.