You would have to hope it was an omission, rather than a commission, but the relevant Scotsman is not listed as eligible for a place at the British Championships.
The full list is at
http://www.englishchess.org.uk/?page_id=16358
with the relevant section being
5 IM or Active Rating 2350 or above PARKER, Jonathan F 2531g ENG
5 IM or Active Rating 2350 or above WILLIAMS, Simon K 2528g ENG
5 IM or Active Rating 2350 or above GORMALLY, Daniel W 2519g ENG
5 IM or Active Rating 2350 or above SPEELMAN, Jon S 2507g ENG
5 IM or Active Rating 2350 or above KUMARAN, Dharshan 2505g ENG
5 IM or Active Rating 2350 or above KOSTEN, Anthony C. 2500g FRA
5 IM or Active Rating 2350 or above STEAN, Michael F 2500g ENG
I've long though that the recording of inactive players in this list was anomalous, since if ENG and not ECF members, the ECF might refuse to allow them to play.