Ditto. ECS/Fargate has always been the easiest, most flexible, most useful containerization solution. It's the one AWS service with the most value to containerized services, and the least appreciated.
there was a pretty big feature gulf between it and K8s when it first launched. I found myself wishing i had a number of kubernetes controllers initially (Jobs (with restart policies), Cronjobs, volume management etc).
From what i've head they've made a great many quality of life improvements but as is often the case it can be hard to regain share when you've already lost people.