That he prefers to play SFA (little tune of little importance) over BIA (one of the greatest pieces of music ever) is beyond me....
Maybe that tune is actualy a lot of fun to play to him 
Or, more likely, easier than BIA!
When he plays BIA he plays it well (I'm talking about the lead guitar - I'm not very fond of the current arrangement, a far cry from the breathtaking atmosphere of "On the Night", but anway, BIA is rather shorter and slower than SoS and TR, I don't think it is physically that demanding for him...
And just to balance my view on SFA, I'm no fan, but I have to admit that the end solo is quite well done nowadays.
