If you had been made aware, in advance, that there was a fine, then sure, you should be fined for being tardy.
Are you pattern-matching on "VC", "lateness", "fine", and your own negative feelings regarding having been late to a VC meeting?
Your reaction to this story (VC firm trying to show that it values potential investment targets' time) is like someone worrying that, since a pizzeria has a policy of not charging customers for a pizza if it's delivered late, you're going to have to provide the delivery person with a free sandwich if you don't get to the door quickly enough after he rings the bell.