> helping organizations build and deploy enterprise-grade AI in a secure and trusted way

> Enterprise Account contracts will no longer be offered to new customers

Seems contradictory or I just don't understand how they do product management.

My opinion: Heroku had its time but then stagnated heavily in keeping up with what was going on around it. With the rise of Container as a Service platforms there now were a multitude of more cost-efficient and flexible alternatives which were comparable to the service Heroku offered.