Sure.Which is why I believe a confrontation amongst Orion and the girls will lead to a quick (and by quick I mean "likely resolved in the same update") resolution instead of prolonged drama (which is what you're basically advocating by downgrading Orion's relationship to friendzone should he get confronted). Dalia herself managed to be chummy with Orion only after a brief timeskip. Nova is shown to quickly become friendly with him even after the initial hostile meeting and mistrust. Then there's also the fact that Cari has been setting up their "sisterhood" pretty early in the game, which will likely lead to the acceptance of the harem situation quite easily instead of potential infighting amongst themselves once the word gets out.
(PS. The other examples you mentioned hardly matter btw because they're essentially route ends and therefore could be considered non-canon. And Cari has never tried to pull that level of drama in the canon routes because Orion always tries to resolve or shut down the drama before it gets real heavy, as is the case of him canonically hugging Alex after she got disowned and giving Luna some pep-talk after she revealed details of her childhood.)
Drama is resolved very quickly. And except for Dalia being seen naked, they are mostly route ends. But my point was that that kind of drama exists and Caribdis can write them. Nova being upset at MC for giving up on his promise on the date is the latest example. It's resolved quickly but the drama is still there. Dalia and Alex's jealousy during Eva's return was great too. Light drama made into comedy but drama still.