I have no knowledge of the situation and don't work for Shopify, but having worked corporate gigs my whole life, what probably happened is very few people knew

I have no knowledge of the situation and don't work for Shopify, but having worked corporate gigs my whole life, what probably happened is very few people knew this was coming, and that group excluded the part of HR that hires people. So the posting remain up while the news comes out, but the roles don't get filled and the postings eventually removed.