In what entitled universe do you live in where a guy who carefully and patiently points out problems is also obligated to solve every single one of them?
Also, do you really need someone to spell out the alternatives to MySQL? There are too many to list.
He does not need to be able to point to an extant, better alternative for his criticisms to be "credible."
BTW, I can't believe you're implying that his post is not credible. The practical outcome of your demand for a solution is to shut down legitimate criticism.
Also, do you really need someone to spell out the alternatives to MySQL? There are too many to list.