The marshals do a great job but I would have possibly thought (although I don't know if individual flags have different and exact criteria for deployment) a sump full of oil all over the very narrow line through/after the bottom of Barregarrow would have been waved yellows and LOA oil flag variant from the start of the incident until the oil was treated particularly through that section where even a bike that the rider is doing his best to slow down will still have to go somewhere, if you wanted or needed the bike to slow down then even waved yellows at the flag/marshal post in the video gives the rider little chance to slow considerably given the bumpy 170+mph approach and maintain bike control in that IMHO too short distance from the bottom assuming that it wasn't flagged even further back up the hill towards the top. The riders not slowing down enough for waved yellows is something that needs addressing, i'm not sure where the attitude by some of not giving the flags enough consideration has come from but it defo needs somebody at the top of management sitting down with the riders and educating / disciplining them properly.