The first problem with that is that you're required to pull over when there are X cars behind you. Bicyclists aren't.
If you can't figure out how to safely pass a cyclist or group of cyclists, I'd suggest you turn in your license because you're obviously incapable of driving.
The second problem is that I've never once seen anyone claiming they're virtue signalling when they're riding. All anyone is ever trying to do is get in a good workout or get somewhere.
Wanna project about something else Nancy?!
x number of cars behind you....
Says nothing about needing to pull over when x number of bicycles are behind you...
Also if there is no place to pull over to... no need to pull over.