if you think devs working on these framework don't understand client side javascript/HTML framework on its own and need to be explained for their particular framework, may be they outta be not writing code at all.

Also, another thing that bothers me about MS is that they hide so much real HTML/javascript from devs with visual basic like facade called webforms that MS devs don't get into a new platform unless they see a document like "Angular js for .net" title.