netstandard 2.0 - support for TransportWithMessageCredential in BasicHttpsBinding

Hello,
question especially to @mconnew or anyone. I want to ensure that we have support for TransportWithMessageCredential in BasicHttpsBinding (not BasicHttpBinding) in netstandard 2.0.

In this site we can see support for BasicHttpBinding, but I'm guess that we have support also for BasicHttpsBinding.
https://github.com/dotnet/wcf/blob/master/release-notes/SupportedFeatures-v2.0.0.md

This code throws NotSupportedPlatformException:
```
var binding = new BasicHttpsBinding(BasicHttpsSecurityMode.TransportWithMessageCredential)
{
};
```

but this code below doesn't throw exception and looks like everything works. I'm not sure if everything is secured/implemented under hood:
```
var binding = new BasicHttpsBinding
{
Security =
{
Mode = BasicHttpsSecurityMode.TransportWithMessageCredential
}
};
```
This is reference to your source code:
https://github.com/dotnet/wcf/blob/release/2.0.0/src/System.Private.ServiceModel/src/System/ServiceModel/BasicHttpsBinding.cs

This is some kind of bug in this code and I can use this code OR BasicHttpsBinding is only partially/not supported? I tried upgrade netstandard 2.0 to netstandard 2.1 but it looks like doesn't help. Upgrade for my case is generally not a good idea because it's a big cost.