I’d imagine that it’s some mixture of the “take refuge in audacity” strategy successfully flummoxing him; and the (certainly common in general, probably even more acute given the close vote) concern for the appearances of the action.
As has been demonstrated by all sorts of protesters over the years, you can’t generally prevent a superior force from removing you; but you certainly can make them look like the brutal jackbooted stormtroopers in the glare of the cameras if they try(regardless of who is actually the oppressive authority figure/unjust cause at the meta level). Even if they exercise utmost restraint and avoid chemical agents, bludgeons, etc. you’ve still got the unpleasantly evocative sight of security forces prying (ostensibly) respectable agents of representative government off whatever parts of your national deliberative assembly’s building they are hanging on to and hauling them off.
Not a look most people want, even if the target deserves it.
