Actually, quite a few people on this website in favor of the DMA have argued literally that. Quite a few who said this exact scenario would NEVER happen. As for the "you people" as you're calling us...we are the ones who called bs on the ones who said this wouldn't happen. Guess who was proven wrong here? I'll answer that for you: those who said this wouldn't happen.
I have been on the forum before the DMA was talked about and arguing as a loud proponent for alternative AppStores, and likely argued in every single article related to the DMA and the right to install software independently from Apple.
And unless I have been sleeping those times I can’t say I have seen anyone but iOSgeek who are a passionate opponent to my side and other using it as absurd straw man arguments against something nobody have argued for.
And used it more as FUD because people think developers owes people to provide an app in the AppStore.
I know it hurts to be wrong, but sometimes, you're better off just admitting it and moving on. The more you keep defending a failed argument, the worse it looks.
Anyone arguing it would be wrong on principle and absurd considering it’s an impossible thing. There countless apps that can’t be in the AppStore and alternative stores simultaneously.
If developers were forced to have their app in alternative stores AND the AppStore simultaneously then it would handicap the apps and make them useless. Just as almost every Mac game distributed on steam can’t be distributed in the Macappstore because of some limitations unless they make a separate version or downgrade the quality of the steam version.
What would an alternative to a banking app be if your bank doesn't distribute outside of an alternate app store?
Change bank, use a web app, use their website.
Exactly how people does it currently with their bank if they don’t have a dedicated ios app.
They don’t owe you an app to be distributed in your store of choice.