Looking at it from the perspective of a developer tasked with making a proper app from a spreadsheet, you're bound to come to that conclusion. But that's with the benefit of hindsight and with a massive dose of survivorship bias.

Of all the spreadsheets that start out exactly like the ones that need to be converted to an app, how many were thrown away having served their temporary purpose just fine? How many of them never outgrow the immediate needs and skills of its creator?

Perhaps spreadsheets should be seen as tools for business process prototyping. Starting a proper software engineering project only after a task has outgrown its spreadsheet based implementation may be a pretty efficient approach.