opening menagerie has to be a mistake. it won't activate. loan is far better if you are getting one. this is a minor error tho.
I see that you had 3 plazas vs 1 menag and 1 warehouse at turn 11 when you bought a 4th plaza. Warehouse would have been far superior - it mitigates the effect of terminal collision, puts Graverobber together with ruins, and helps cycling, which is crucial for your expand strategy. you buy a 5th on T12 and a 6th (!) at T13.
Warehouse/menagerie is a strong combo, and probably at least somewhat effective here, but instead you bought plazas.
if I were your opponent, i certainly would have gotten more cultists over treasuries. Treasuries are at their best when you can wait to green by building up an engine, which is impossible here.
I like the idea you had here. I can't say how effective it is against cultist. It's a long shot, which is probably appropriate in response to a 5/2 cultist opening. I'm inclined to think you wanted at least one cultist yourself (maybe), but yeah, i think your buy ordering was way off.