I can only think that it is a loophole that the EFL have not addressed. It's not that it seems very unfair, this development could also decide who gets the third promotion place if this guy has a blinder against Bromley. Other clubs will be looking at this situation very carefully. I googled for more info and this is what I got in reply. "EFL clubs are allowed to bring in emergency loans—specifically for goalkeepers—to ensure the integrity of the competition when all professional goalkeepers are unavailable due to injury, suspension, or international duty. These rules, managed by the EFL, prevent a club from being forced to play an outfield player in goal". So now it seems goalkeepers are treated differently to outfield players.