Cayman Airways needs TSA pre-check

Why doesn’t Cayman Airways participate in the US TSA pre-check programme for expedited security clearance? If I am travelling from one of the cities with competing flights to Cayman Airways (Miami, Chicago, New York) to Grand Cayman and have a choice of expedited security clearance (American, United, etc) vs the slow lanes (Cayman Airways), I will always choose the airline with TSA pre-check. It seems to me that by not participating in pre-check, Cayman Airways puts themselves at a competitive disadvantage.

Read Auntie’s answer and comment on CNS Local Life