You can only beat former 155ers for so long, that's how weak the WW division nowadays.
Still I believe Colby should at least won another fight after Woodley, and I don't think he deserves the title shot, but he is still the only legit fight for Usman other than failed 155ers like Masvidal and Burns. Both Woodley (now retired) and now we know Thompson are too old and they are out of their prime, unranked Khamzat's situation doesn't look good, as well as Leon struggled with 155er Nate, and almost got dropped via Nate's pillow punches.
WW division is probably weakest division right now.