The title strongly implies that vendor lock-in is a bad thing (the phrase "lock-in" has a very much negative connotation), but then the article proposes that you should just give up and go all in on vendor lock-in with a proprietary platform. The alternative to vendor lock-in with SaaS would naturally be running standardized open-source or home grown solutions. That is what people who complain about vendor lock-in generally recommend, not SaaS. The article would be more clear if it addressed that.