No T-Mobile coverage at Universal Orlando's new Epic theme park?

I'm a little surprised, to be honest, that there's apparently no coverage for T-Mobile users for Universal Orlando's new Epic theme park (next to Universal Studios and Islands of Adventure).

Apparently Verizon and AT&T have coverage there.

https://www.reddit.com/r/UniversalOrlando/comments/1k00pqs/epic_universe_cell_service/