Seems like the resulting attention on the repost makes for decent justification in this case. I'm glad to have seen this, and I don't like the idea of good content slipping through the cracks because of timing and circumstance.

Note that there is a “second chance” pool of posts which did not get much attention but are perhaps more interesting to the community than the engagement suggests. The mods seem to agree with this point, given that.

https://news.ycombinator.com/pool

I can relate and it is something I'm thinking about as I have a post I'd like to try reposting without coming off as spammy. In this case, the repost was indeed worth it as far as I can tell.