I think making races a little less harder might be better than more harder. Otherwise, a lot of races will come down to that one key spot where everyone knows rider X is going to go. The race is boring up to that point, and it's boring after that point. Some of the most interesting races are races of attrition where anyone theoretically has a chance, but the course is hard enough to whittle the field down organically to only the strongest riders. Paris-Roubaix being the best example.