Yeah I agree...I feel it's more him calling out the logic of playing friendlies mid-week, approaching winter, in Wembley.
Getting back from Wembley anywhere north after the match is almost impossible, by the time you get to Kings Cross it's 22:30 and there isn't an option to Manchester, and the Leeds option gets in at 2am. It's so London/South centric it's a bit of a disgrace. That has started to change a little in recent years, but nobody can argue the atmosphere is better when it's at Villa Park / Elland Road / St James etc.
Atmosphere it's also very similar to 90% of domestic stuff, away fans are on the piss all day, big allocation of course they'll be loud. Home fans probably have come straight from work for a mid-week match, and want to get a flyer to get home.