It’s definitely not an equilibrium shove. What reason did you have to think BB would over-fold? I don’t think a VPIP 0 over 14 hands is sufficient to justify such a significant deviation from the default play. You should be able to evaluate this for yourself by testing out your equity against a couple of different calling ranges.

Wow, that’s a bit surprising to me, thanks for sharing those results. If it’s that close at equilibrium, then if you think V won’t call optimally (a reasonable assumption), it may well be a good shove. The way I know it’s close is that 74s is the break-even point (according to HRC), and 72s is barely worse than that.