17 minutes to call 999 is an actual disgrace, maximum 5 minutes for a TL to radio control and give the details of a crash, send help asap...
Awful management there...
In terms of wind, constant is the key term, I saw a stall occur at Milky Way the ride op was testing it carefully (in that whole, one more car to make sure situation), where a massive gust a wind blew into the drop as it went around, this is probably what occurred here, but everything afterwards procedural wise is a disaster... There's staff in the shop and front gate yet it didn't go through? Strange tidings indeed...