Yeah, I gotta fully get behind this as my highest priority. I realize that doesn't mean a lot since I haven't published yet, but that's exactly why I haven't: if I can split royalties with my cousin (who I collaborate on pretty much every project with), that would be a huge hurdle. Running the finances otherwise is a pain.
Viewing post in Physical games classification project
There's a dedicated thread for revenue splitting you may want to chime in on then! I think if we can get some more of the attention as seen here, it might help them see it as something we need tackled.
https://itch.io/t/391522/split-revenue