Power Automate is the way forward, but we all have a history we cannot simply discard. In this history for instance I know businesses use the 2010 capabilities for automated permissions management of sharepoint content. Power automate is not as versatile in this. Its only recently released permissions management action can not handle sharepoint permissions groups. Never got the api call alternative working. Now all of a sudden time is running out! Also the 30 day limit of a running flow is not something that is easily circumvented, coming from a no time limit solution.
It is all about trust and managing expectations. The product lifecycle promises support until 2026. So much for that. Who's next? Infopath, also supported until 2026... surely need more than a few months to get all of those into Power Apps, if at all...