Finally, someone with an answer. I sent my question to customer service and they answered,
"Thank you for reporting this matter. There are a few monthly tournaments that mistakenly excluded the three states that do not allow skill-based gaming. We apologize for the inconvenience and will work hard to ensure that the next months tournaments do not exclude the three states.
We thank you for your patience and understanding.
Regards,
WGT Member Services"
So, there you have it, a glitch.