It is definitely difficult because every year people ask whether meteor is dying. So eventually it might just happen, but meteor keeps up with its heart beat.
Meteor is quite different from other frameworks like Express/FeathersJS etc... They tend to be more like Libraries, whereas Meteor is a full Framework, all the decisions made, packed and working for you.
Meteor is no longer as simple or as powerful. They allow you to mix and match and are becoming more of a library, but without the...