Well, thereby hangs the tail ...

Mike Holt was first to realize that this list failed to include stairwells. Others at his site also noted that the non-GFCI protected kitchen circuits were also not required to have AFCI protection.

Now you mention the lighting.

As I see it, the code panel said 'outlets' when they were thinking 'receptacles.'

Another possibility is that they wanted to say 'all' without actually saying 'all.' This might explain the earlier limiting of AFCI requirements to bedrooms; at that time, it was rare for a bedroom to have a dedicated circuit.

Who knows? I've said all along that the AFCI requirements, whatever the motive, were 'bad law,' It's no surprise that these issues keep popping up.