Think this scenario is more comparable. He gives it a go, falls behind, gives up. Like Hindes did, only he got another shot at the same race, while the Algerian dude's next shot was in a different race. I suppose you can debate whether the Brit(s) did it on purpose, but assuming that Hindes at least did, then... But yeah, different sports and different rules perhaps, but then that is something that should probably be looked into, it's not right that one contestant gets thrown out for not giving his best while another one isn't. (And of course when the one let off performs for GB it makes it all the more controversial.)