I think the concept of having exactly 8 insert slots on every channel is woven too deep into the system to change it, while keeping backwards compatibility.
However a lot of us sometimes need more than 8 inserts on a channel, especially on the MasterBus.
So here is a suggestion for a nice workaround:
Add a internal Macro, that (for a given selected channel) creates a new group-channel that outputs it’s signal to the selected channel, and changes the output for all channels in the project that were originally routed to the selected channel to the new created group channel. That way you could get 8 more inserts with just one click.
You could do that manually, but in a project with more than 50 channels that could get quite time consuming, so an auto feature would help a lot!