I agree, this would allow those who REALLY need to fully charge for a long trip to still charge above 85% but they’ll have to pay a premium for it. There is a congestion fee that I found in the Lucid app (attached), but I’ve never encountered at any EA station yet.
I think the issue is with vehicles with free charging, such a fee wouldn’t apply to their free charging plans unless they can modify the T&C’s with the vehicles manufacturers, which is a headache to try to deal with, so limiting it to 85% is the better option for now.
Charging at EA stations will improve once free charging starts to fade away over time, and people realize how expensive it is to charge at EA stations vs at home.