apparently the activationEvent is implied now

but you still need the key? idk it works

package.json

@@ -2,7 +2,7 @@
     "name": "logic-language",
     "displayName": "Ori WotW Logic Language",
     "description": "Support for the areas.wotw language",
-    "version": "0.2.4",
+    "version": "0.2.5",
     "publisher": "orirando",
     "license": "MIT",
     "repository": {
@@ -17,7 +17,6 @@
         "Snippets"
     ],
     "activationEvents": [
-        "onLanguage:ori-wotw-logic"
     ],
     "main": "./out/extension.js",
     "contributes": {