Firstly - Who said it matters? Does it have to 'matter' for me to type about it? Half the stuff posted on here doesn't really matter.
Secondly - People are debating whether he'll play regularly ahead of Valencia. As the default option, so to speak.
Doesn't that concern him being first choice? Yes it does, and personally, I don't think he'll play regularly with Valencia as his understudy. If we don't bring in a player specifically for the wing-back role, then Valencia's as suited (if not more suited) to play there, in my opinion.
I'm not really sure how that's a moot point.