I'm pretty familiar with LNR, we used to own the farm land on 3 adjacent
sides of the airport. There are 3 or 4 run-up areas along the south edge of
the 9/27 that either could have used plus the 210 could have pulled off onto
36/18. Didn't either of them think of hitting the brakes and or maybe
pulling off into the run up areas?? What were they looking at as they rolled
down the runway towards each other? Although I don't know their weights or
the density altitude at the time, I think 9/27 is long enough for both of
them to accelerate/stop at the same time.

Bonehead move X 2 for sure.

Glad you weren't in either of their paths.

Jim