I've just started to talk with a local guy who is an experienced rando, with several complete Series to his credit. He's never raced, but likes a minimal-weight, steel Waterford. His reason for that is not that he's always been a racing type, but that in 600km it makes a difference to save as much energy as possible, and to have the ability for speed. The more time you spend or may be forced to spend at a checkpoint, the faster you have to go to keep you time within limits. Also slow climbers will probably have to go faster.

Jan has also referred to rando bikes (I think this came from his Boulder Brevet review?) as racing bikes that can handle mudguards, lights and light storage. While I don't think racing has anything to do with any brevet at least not in how they're organized, speed can be a part of it.

Way back in the olden days, Velocio took epic rides across France. HAD to carry sleeping gear. Maybe this was cyclotouring?

Other than that, if Jan uses the term, maybe he has it in the glossary on the BQ website.