Meteor has a lot of users, and is still around. The problem with Meteor is that it uses JS, and that language has a lot of problems. Typescript has clobbered meteor, as people have realized that JS makes it far too easy to make a typographical error that crashes at runtime.
JS is still ahead of TS in usage according to the Tiobe Index and Github language commits. As far as typographical errors go, every already knew JS was a dynamic language, like Python and Ruby. I'd say other frameworks like React and Angular, or their predecessors out-competed Meteor.