Should I use wkweview in my Ionic 1 mobile app build on latest Cordova and cordova iOS

We have an Ionic 1 application which is working perfectly fine using latest Cordova cli and cordova iOS. We have given support for iOS 10.3.2

Now should we use wkwebview using the plugin ? What are cons of using it (I know about pros)

Since wkwebview has been released with iOS 8 , is it default choice for latest cordova version and if not why ?