Originally Posted by
Mike Jenvey
Ludicrous to stick rigidly to Group boarding system if using a bus
Except that as we have found out elsewhere in aviation, SOPs are the way to go. Sure it may be irrelevant to a bus transfer but it organises the queue the same way for each flight, and the ground staff (bearing in mind the "hired-yesterday" experience of seemingly many at LCC stations) have just one set of procedures to follow.
There are all sorts of variables (eg two buses required, doing it by group preserves at least a bit of the priority boarding sequence approach). Yes, possibly not in the case cited. But one set of SOPs.