Would ditching lightning really make finding a compatible cable easier. Which alternate cable should they have used? Mini-USB, Micro-USB A, Micro-USB B, USB Mini-b 4pin, USB Mini-b 5pin, UsB 3.0 Micro-B, Micro-USB AB, goodness knows what else.
Lightning was a revelation. Rotationally symmetrical, fast, auto-negotiating, compact. It set the benchmark for what a mobile charging cable should be like.