I think they could have done a lot better by having Elon tweet out a new product preorder page (limited edition Tesla merch?), which accepts payments in crypto. Really anything other than give me X so I can give you 2X, which has been done to death already. 100k is chump change, historically for this class of scam.
Another idea is, hijack customer service request DM's from crypto exchanges, and lead customer to phishing login page. Perhaps could athorize API access to the account, and then change email back to original, without the owner realizing account breach.