Is it time to start calling out bad cyclists?

Was this guy, out of interest, riding a Ribble Audax bike with a pannier?
I once tried to follow this guy along the Embankment and got absolutely ruined. I couldn't even keep his wheel. He didn't even look bothered by it.
V embarrassing.

There was a regular guy like that when I used to commute that way. I was suffering to tail a few lycra fiends on way back home once and this spectre just appears out of nowhere and casually overtakes us. Panniers and all! everyone lost the will to go anywhere.