I agree with you, yes JET should tour MEXICO.
My concern, being from UK, is that they're gonna have such a fantastic time they'd not want to leave!
Give them a bit longer, probably just getting their insurance and visas organised and I hope you'll see them this year because they are amazing!

If the rumour is right they'll be back in US in March so may be planning to see you guys afterwards, and it may be before June when UK do their festivals if JET are billed to play this year. Wishfully hoping. Amongst fans.

JET on your way back from Mexico, come to UK!!