Your arguments fail logically, in addition to relying on a faulty premise.
We can't say what beats what, or where drugs fit in on the spectrum of performance, if at all, without any performance data for drugs for comparison.
Potential performance benefit alone is not enough to ban a drug. According to WADA, they also consider if it's potentially harmful to health, and/or against the spirit of the sport. After consideration, these factors don't apply to the shoes.
Regarding world records, we need to distinguish supershoes on the roads, with thicker foam, where world records have been smashed, tightly correlated in time with the rollout of the supershoes, and the superspikes on the track, where most world records have also been broken, tightly correlated in time with the rollout of superspikes, but by less, with rare exceptions for the fastest races, the mens 800m and 1500m, where the predicted effect is the smallest.