PublishingWeb.GetPublishingWeb is not working in SharePoint 2013, CSOM

    var pWeb = PublishingWeb.GetPublishingWeb(context, context.Web);
        context.Load(pWeb);
        if (pWeb != null)
        {
           <This condition is true for Team and Publishing Site Both>
        }

This code is not working, it's going in if condition, if we provide Team site context as well..

        using (var clientContext = new ClientContext(webUrl))
        {


            var pWeb = PublishingWeb.GetPublishingWeb(clientContext, clientContext.Web);

            clientContext.Load(pWeb);

            if (pWeb != null)
            {
                Console.WriteLine("Web : " + webUrl + " is a publishing web");

            }
            else
            {
                Console.WriteLine("Web : " + webUrl + "is not a publishing web");
            }
        }

I have already included - Microsoft.SharePoint.Client.Publishing .. REFERENCE AND NAMESPACE in my project

I am using SharePoint 2013. Kindly suggest what is the issue here? why it's going in if condition for team site.