Yup I’m aware and I never wanted to say that. I just wanted to suggest workarounds which could work for some use-cases because it does for me.
Of course I’d love to have sidechained EQs! (btw. there’s also the Toneboosters EQ which has this functionality for those who are on a budget)
What I also do with kick + rumble (yeah probably not applicable to your bass use-case) in my set:
The kick goes into a Drambo patch where I generate the rumble from the kick in a rack with a bunch of effects and then I glue everything together in Drambo with S/C compression and some other stuff. So kick and rumble are just one channel and I have mapped some LP widgets to control a few things in Drambo or just change the whole preset.
Yes, I’d love to do things more straight forward and I really really hope multi-bus plugins are the next big thing in LP. But this still keeps me more in the flow than a PC with a DAW.