I would wonder if half of that was heard or intelligible to those intended, due to ambient noise level, others screaming and engine noise? A hailer or VHF might have been more productive.
I had the same thoughts. The Okaloosa County Sheriff’s boat (Rescue boat), has the Okaloosa County Sheriff’s tactical frequency which he was using most of the time. I suspect that he also has one marine VHF radio, but didn't seem to be using it. Under the circumstances, he was using both hands for throttles/shifters and wheel. He may not had the luxury of picking up a mic and talking to the crew boat doing the towing, or a loud hailer. You do see his hand out pointing--who knows what radio communications occurred before the video. The yelling did't seem to be effective. Okaloosa County Sheriff’s has a dedicated marine unit, with 3 boats, and two beach ATV. There are 8 officers specifically assigned to that detail. There are also at least 2 Florida Marine patrol boats in that area, and a fully maned USCG station--which is were the rescued victims were off loaded.
I had wondered about the transfer of the two victims from the sport fisher in relatively rough waters, but seeing where they were taken to, the sport fisher might have had difficulty in those waters, and pier--best to keep the family together.
Not sure what the role of USCG was there--the Rapid Response boat was tied up at the dock. I suspect there is a line between where the SO and CG works. Also most likely the distress call went to 911, (lack of marine VHF in the wake board boat) and SO responded.
The Okaloosa Life Guards haveup to 23 seasonal employees (March thru November) and 5 full time empolyees. As well as beach safety and surf rescue details, there are 2 PWC according to web sites, but three were on scene, and the 3rd, could have been from adjacent Walton County. The use of PWC has dramatically changed the course of beach rescues, where as most patrol boats cannot operate in the surf, the PWC are ideally suited. The Okaloosa Co. Lifeguards have two portable radios: one is Life guard only the other is mutual tactical frequency. But, it would be almost impossible for those to be used to transmit during this type of operation.
A few years back the Florida Marine Patrol didn't have Marine VHF radios--and relied on a 6 meter frequency for radio dispatch form Panama City which could be many miles away from the scene of an incident. I believe that they now have Marine VHF, and a mutual aid tactical frequency radio.
The vessel doing the initial towing is clearly identified at seconds 14 and 15 as "Crew Boat". This is a crew boat working for Mike Hooks LLC.