Incompatible plugin should make the build fail, not be skipped silently

When compiling (on Phonegap Build) a project containing a plugin which Cordova's version is incompatible, the plugin is silently skipped and the build is successful. Of course the functionalities of the plugin won't work in the app. Eg, here's what I got when compiling phonegap-plugin-push with Cordova 6.3.0:

Fetching plugin "phonegap-plugin-push@1.9.0" via npm
Installing "phonegap-plugin-push" at "1.9.0" for android
Plugin doesn't support this project's cordova version. cordova: 6.3.2, failed version requirement: >=6.4.0
Skipping 'phonegap-plugin-push' for android