If this were a workload problem, than there is a lot of fat that could've been trimmed from the game instead. There's the Dungeons and Gremlins sessions, the Madame scenes, the houseplant watering minigame. Stuff like that should've been cut instead of making the MC into a terrible friend to half the potential love interests.
The game desperately needed the option to push back against Quinn in some way, and I think that the best way to do it would've been through Sage. If the MC had asked Sage about Quinn's restaurant, Sage would have to question Quinn about it, who would then say that the MC is just lying to get back at her for pushing him out in the streets naked. Sage would then see that as a reasonable explanation, since she's known her for two years and clearly favours her since Quinn was Sage's pledge, but it would also leave Sage with serious doubts about Quinn which would fit in with her trust issues resulting from the Chad situation.
That would set up an interesting cat and mouse situation where we could put pressure on Quinn, and she would have to use her wits to stay afloat. This would've made both of the characters look better, and it would fit well with the current plotlines for both Maya and Sage. We could slowly work at driving a wedge between Sage and Quinn until the shit eventually hits the fan.
The other option would've been to not let the MC know about Quinn's involvement at all. Just have him get the restaurant number off of a bathroom wall or something, instead of learning about it directly from Quinn right after we tell her that we do have bad feelings towards her. This would mean that Quinn doesn't look quite so stupidly careless with her business, and it would've kept the MC from having to hang his friends out to dry for literally no reason whatsoever.
Sage's doubts about Quinn were raised by Maya. In EP3, Maya asks Sage if she can change mothers. Quinn overhears this and says that a stupid DIK Made (MC) put the flea in Maya's ear.
In EP6 there is an incident at HOT's and 2 sisters leave HOT's as a result. Sage connects more and more with the MC, be it romantically or amicably. This also makes Sage know that she can trust the MC, which makes Quinn's statement about the stupid DIK Made (MC) seem unbelievable.
Sage doesn't take this lying down and investigates. She talks to Maya and Maya tells her about the free tutoring sessions. Sage still believes it's a rumor. But when there's blood in the water, the sharks come.
Sage now becomes a shark herself and follows the smell of blood. She takes matters into her own hands. She helps Maya and is determined to talk to Mona. Things are getting tight for Quinn, whether the free tuition is just a rumor or not. Quinn has been bullying Maya and still feels safe because Maya doesn't know anything specific about the restaurnat.
But Maya may have mentioned to Sage in EP7 what the MC said to her. That Quinn is using the girls to make money. Sage might also start to believe that because she has bonded with and trusts the former stupid DIK Made (MC). So it's no wonder Sage wants to talk to Mona.
I also wouldn't be surprised if we get a little flashback in EP9 where Sage talks to Mona. There was a time jump at the end of EP8 that leaves room for a flashback from EP9.
I also think so Mona could come back because the images in the BaDIK start screen includes an image showing Sage and Mona in the HOT's sauna.
Or maybe the hunt has already begun without us realizing it. What if Lily and Mona are working for Sage and/or Stephen Burke.
Mona tells us at the beginning of EP6 that Quinn is not only involved with prostitution, but also with drugs. Lily gains Quinn's trust and even buys drugs from her. Oddly enough, in EP7 Tania comes into the picture, and she has a clear connection to Tommy, who is also using drugs. In EP8, Lily and Tommy talk about their sources of supply for the drugs. Did Lily find out through Tania, so Tommy is in on it too, and the DIKs are being checked now too?
Somehow it seems that Mona gathered information but couldn't secure evidence and through her supposed leak informed Lily who is now looking for the evidence and securing it. Everyone trusts Lily because she is a stripper from the Pink Rose.