It isn't about getting rid of air travel. It is about making it even more of a tax donkey than it already is. The radial few you speak of have deep seated beliefs about saving Gaia. The cynical puppet-masters actually running the show see it as just one more way to make things more expensive for the peasant class (transferring what little they have left upward) while increasing government control and further entrenching large corporations at the expense of new entrants.