Without directly mentioning the Bandai statement, the recent event tried to fix some of it. They had Mio call Suletta her partner in a romantic context and drew attention to the girls' rings both in pictures and words. The elegant phrase "Suletta and Miorine were wearing rings on their ring fingers" made an appearance. Apparently Bandai isn't trying to deny their relationship or their marriage, but is unwilling to use the M word, probably because it's a hot topic in Japanese politics right now.
This isn't to defend Bandai or soften the laudable sentiment presented in the above image, but you don't have to fear any retcons or future works going full galpal.