This is essentially blogspam for the author's web development shop. It handily ignores the #1 advantage of spreadsheets - business users can develop and evolve them without outside help. It's a double-edge sword for sure, but that agency is super valuable. Problems have to be pretty big before a custom web application is a better choice... and before you get to THAT you have to blow through AirTable, Salesforce and Retool territory.