Knowing people: They probably ignored the messages and just focused on all the cool action scenes. Assuming the movie franchise you're talking about had them.
Yes fsr it seems Lucy havers are particularly defensive over Corvus, questioning her existence. Like my person: Corvus isn't for you, she's for others so that they don't have to wait another year to play the prime Dynamo DPS and is mental single target.
MyGO and AveMuji feel like the only ones to break out of that niche circles and into mainstream (at least as far as they can). Both animes being soft reboots that were newbie-friendly likely helped.
The harsh reality is that Bandori has never been popular amongst the "mainstream" anime crowd even back in its old days. Just within its niche and even there Love Live still beat it. People can recognize LL but not Bandori. The original anime was also very newbie-unfriendly. And then PJSekai came in
