Sorry to hear that MAC, that really sucks!
Its a great learning lesson for us all thought if it does not feel right check the prop right away. I had a similar issue first day out with my thrust stopping dead, I flipped it up and the propeller was gone but I found it on the bay floor after 2 hours of snorkeling
On an ESC note, long story short after confirming with a couple guys who know ESC’s very well, they all came to the same conclusion, and I see what they mean happening in this forum all the time with builders as ESC or wire connections meltdown.
Bottom line RC controllers are meant for short bursts for a car or boat to blast forward for 3-8 seconds and be out of sight before letting off on the throttle. With efoils, we draw full power for longer periods of time, and then still keep the power up at 50% when cruising which is a lot of current still. I was told whatever the ESC is rated for like your 200A flier is that you take 60% of 200 (.5*200 = 100A), that is your safe burst draw for long-term use so the motor should not draw more than that at peak, then take 60% of 100A which is 60A continuous and this should allow a long life on an ESC.
The reality is most of us are pushing ESCs way beyond their normal operating limits and the only way to resolve this is to use a smaller motor, or upsize the ESC so your motor is not straining the ESC ever ride or when weeds get stuck in it for only 30 seconds.
Hope this helps shed some light on ESC sizing for readers?