The MOA isn't the problem - you can fly in an MOA. The Valparaiso, Florida Terminal Area is the problem - it has permanent flight restrictions from the surface up to 18,000 ft MSL:
14 CFR §93.83 Aircraft operations. (Valparaiso, Florida, Terminal Area)
(a) North-South Corridor. Unless otherwise authorized by ATC (including the Eglin Radar Control Facility), no person may operate an aircraft in flight within the North-South Corridor designated in §93.81(b)(1) unless—
(1) Before operating within the corridor, that person obtains a clearance from the Eglin Radar Control Facility or an appropriate FAA ATC facility; and
(2) That person maintains two-way radio communication with the Eglin Radar Control Facility or an appropriate FAA ATC facility while within the corridor.
(b) East-West Corridor. Unless otherwise authorized by ATC (including the Eglin Radar Control Facility), no person may operate an aircraft in flight within the East-West Corridor designated in §93.81(b)(2) unless—
(1) Before operating within the corridor, that person establishes two-way radio communications with Eglin Radar Control Facility or an appropriate FAA ATC facility and receives an ATC advisory concerning operations being conducted therein; and
(2) That person maintains two-way radio communications with the Eglin Radar Control Facility or an appropriate FAA ATC facility while within the corridor.