Cordova-plugin-ionic-webview 3.0 and above required minimums support 11?

I want to know that the reason why cordova-plugin-ionic-webview 3.0 and above required minimum deployment target 11. I’m referring to this forum link

https://forum.ionicframework.com/t/do-we-need-to-explicitly-install-wkwebview-for-ionic-4/168608

I’m need to know the reason behind this limitation.

Thanks in advanced.