I have not ever in my 7 years of playing encountered a 500MN hictor outside of wormhole rolling.
And I can’t see any issue with that tactic. Not when much worse things exist in EVE, like bubble screwed gates, titans on gates and so on. You even have to sacrifice a lot of tank to make it work, and you cannot jump a gate because it gives you aggression. There are so many downsides to this technique.