If a SaaS is approximately as unreliable and insecure as self-managed software, the only reason to still choose it would be for liability reasons. You get to legally blame someone else if things go wrong. I'm curious whether companies have faced this hard reality and decided that buying liability insurance + doing things inhouse is more economical & better for business.
That’s not a reason. Haven’t you read any terms of service and user agreements? The vendor never accepts responsibility.