two things:
one, you dont get suspended for initiating a go-around for a landing aircraft if the preceding has not vacated in time. thats just good safety practice. (and preceding landing pilot should be clobbered)
two: runway occupancy is a big thing!!! and most airlines play the game of getting off the landing runway or rolling as soon as they are cleared for take-off. but every now and then a slacker "strolls" unto the rwy and causes havoc for the rest, especially during single runway ops.
please all, lets all play the game safely and expeditiously!
