you shouldn't have anything against them dude, they aren't big at all, you should be surprised that they even were supposed to tour the UK
Wonders Years toured here about 3 or 4 times before The Upsides came out.
I Call Fives toured here with only one EP.
I could go on but the point is loads of bands do it, but if the band can't do the tour, don't book it. Simple as.