Define dead. Oracle and IBM continue to make a lot of money with their appservers in Fortune 500 companies. It fits their large bureaucracies well.
In the open source world things have been looking better. When Oracle dropped commercial support for GlassFish so did interest in GlassFish drop. Some of them migrated to WildFly / JBoss AS/EAP. TomEE has been the only new entry in recent years and from the outside it seems they are struggling to deliver a Java EE 7 (which is two years old) compliant server. Geronimo will be closed down soon. Resin is in its on niche.
The other question is how you define Java EE. If you're using JPA in Tomcat, is that Java EE? If you're using Bean Validation in Spring Boot, is that Java EE?
But then again, has there ever been a time when Java EE had a good rep even with Java developers or was it always something they had imposed on them by "enterprise architects"?