I agree that the posted 90 through Banff is painfully low.
I drive that road a lot, and find everyone passes me. I used to be a road warrior in my younger years but now stick very close to the speed limit.
I can't tell you how many times I run through that area and see speed traps. Not uncommon to see 3 or 4 from the gate at Canmore to Golden. And they always have people pulled over.
Even though they have wildlife fences there are still those that make it past and cross the highway. That's one of the reasons they have it at 90. It's not until Canmore that it goes to 110. I'd hate to hit a deer while riding a bike.
I drove it yesterday and was about 25K out of Calgary when 2 deer entered the highway right in front of me. Very close call.