Akuperma, where do you make up your facts from?
Its the old style “oogat matza” that largely died out since they tend to go hametzdik (that’s probably where the minhag of gebrokts came from)
I know many Sfardim who keep these all Pesach long, and they don’t “go chametzdik.”
though some Sefardi communities keep them, and every year some people try to revive the custom among Ashkenazim (usually as the “koolah” of the year)
They are quite plentiful in E”Y. They guy where we bought our Ashkenazi matza has the soft ones for NIS 70/kilo. It’s certainly not a kula to use them; after all, if we go by minhag avoteinu, all matzot back then were soft. Do you think Hillel made a sandwich with cracker matzah?
Rav Schachter says they’re fine to use for Ashkenazim and Sfardim.