I think it’s unlikely that #2 would have happened if EVF leadership hadn’t known that #1 would also happen, as SBF had promised he’d make donations to MacAskill (according to the New Yorker article).
Financing a stately mansion is a lot less risky if you know your rich friend is going to recoup the cost.
Effective Altruist Leaders Were Repeatedly Warned About Sam Bankman-Fried Years Before FTX Collapse
https://time.com/6262810/sam-bankman-fried-effective-altruism-alameda-ftx/
Caroline Ellison called herself “Fake Charity Nerd Girl” and openly talked about her risky overleveraging strategy on rationalist tumblr:
https://speakertoyesterday.tumblr.com/post/700814996538523648/worldoptimization-slatestarscratchpad-all#notes