No surprise they are appealing this decision given the points at stake that depend on it in what is shaping up to be a very close fought championship. Personally, I think they are going to struggle to get it overturned despite what their data says about the time gain as the time gain from the action is not what is at issue as far as the rules go.
Here in the UK we don't have such problems with chicanes - either they are solid and you respectfully go around them or else they are like these Mexican ones and you just make sure you have a certain BTRDA title winner in front of you. Bingo, no chicane exists by the time you get there!