To be fair, he's probably somewhat right about the relative popularities here and there. AV7 played ab 3k seat venue two months ago in Barcelona. DT's last tour through there was in a 13k seat arena. While we have no idea how well these things sold, it does stand to reason that they were allowing for greater capacity.
Worldwide, I suppose AV7 does have a larger fanbase, but the dilution of the American Hot-Topic set probably skews that quite a bit. I wouldn't be surprised if that weren't a very large demographic in Europe. .
Edit: starving, BTW. Lunch time here in Dallas.