I'll miss lightning when it's gone if only because it was the most satisfying and secure feeling cable connection I've ever used. USB-C has some slack built into it by design but it just makes it feel lower quality.
On average, over the life of the device, every device needed to be sent to Apple to replace worn ports. Some unlucky sales people managed 2 or 3 trips to Apple. The annoying bit is that the turnaround time isn't exactly fast so we ended up provisioning the affected people new machines and then throwing the refurbs back in the rotation.
We never heard a peep from the Dells we also deployed that had a USB-C port for the dock, HDMI ports for the AV, and a dedicated port for charging. I like the idea of one port for all but they're just not strong enough.
edit: and if there has to be a weak point it should be on the cable side, not on the port side.