Honestly, this is a good summary of the discussion. The game caters to the "whales" that spend money on FGs to spin gacha and refill their stamina. Maybe BB IS that popular, maybe it's just a few whales being idiots that have too much money, IDK. The point is, if you don't have the time to play the event missions over and over and/or the money to spend FGs on stamina refills to keep re-running the event maps, Nutaku/FKG devs don't care if you feel your opinion is undervalued. They keep their games running based on making money, and if they piss off some people who don't spend much on the game, oh well, the whales that love their BB, Orchid, etc. are still paying and playing, and that's what they care about.
That said, the presence of Orchid and Cactace is an entirely separate issue that COULD cause concern, especially given how poorly the event was explained. If the uniformed masses find out they wasted their tickets on Orchid when we will get her anyways, Nutaku COULD have a LOT of people complaining. Whether you want your darling 2/3* upgraded to a usable 5/6* or you love a 5/6* so much you want a 2nd version of her is irrelevant to the QUANTITY of 5/6*s in the game. Missing out on one entirely due to developer laziness, on the other hand... THAT is an issue the vast majority of gamers can get behind, regardless of whether your waifu got a new version or not.