Anyone have an idea why this morning's flight 510 from DEN-LGA was diverted to CAK for weather (where as of now it still sits) whereas the United flight that left DEN a few minutes later landed at LGA just fine?

Would this have been a pilot or airline or airport decision? Had all flights been diverted, that would have been more clear but I find this one confusing. Does Frontier just not have enough clout at LGA to get priority in the queue?

Finally, should Frontier cough up anything (aside from packets of goldfish crackers) like a voucher in response or since it was weather-related is that out?

Thanks!