Connect-Disconnect cycle performance doesn't have much to do with a cable's "rugged"-ness, i.e. robustness to normal stressors encountered during normal use. I've destroyed a million percent more Micro-USB cables than previous USB standard cables because the connectors are prone to irrevocably deforming when stepped on or when the cable gets lightly tugged up or down when plugged into a device.

Simply put, connect-disconnect cycles aren't the biggest threat that USB style cables encounter in normal use, and so this metric has little to say on the topic of cable ruggedness.