You make it sound like they randomly woke up one day and decided, for no particular reason whatsoever, to not hold an event they had already put enormous effort into planning and scheduling. They are cancelling their event in an attempt to pressure LambdaConf into bowing to their political demands.
> If we're going to keep running with this thanksgiving comparison, they're not asking for the relative not be invited. They're having a party the day after, a party to which the crazy relative was never invited, and decided to cancel that.
How would that behavior make any sense, though, if you're a person who doesn't want to disrupt the Thanksgiving dinner? They already didn't invite the crazy relative to their own party; what more do they want?