You are correctly right @tallbloke35 . SLR doesn't want to produce taboo content (espically stepdaughter and stepsister scenes) because they are afraid of credit card companies' blocking them as processors. Even though it is discussed before big guns like Teamskeet (which literally they are consistenly providing SisLovesMe, DadCrush, PervMom every week for years), Nubiles-Network etc. doesn't get affected by them.
Even if SLR produces taboo content like stepsister or stepdaughter themed scenes, they only put the word stepsis/stepdaughter on title but doesn't include in the plot or in dirty talk. Which is seen in most of the AlexMack's taboo content (they are not even labeled as "Raw Taboo")
But I really like Alex Nash's approach to taboo content where he mostly focuses on the plot and dirty talking which is basically taboo videos' whole purpose. I think with VRSpy he can have more freedom in taboo aspect since he is under different label and creatieve decisions.
As for SLR I can only say with vanilla scenes, "boring" formulated videos maybe you can generate more money on paper for now but every studio is already doing the same vanilla thing. So what's different with SLR Originals for a user to choose? If they are not different with each other and is the same of what %90 of studios do, then it is replacable. You should create your core userbase depending on creative aspects on videos but I don't know if SLR cares what core customers want. Create more taboo content (stepsister etc.) and be confident about them while doing the good roleplay and dirty talking etc.