Is Clive Barker underrated?

Recently I started to delve into Clive Barker's novels. I've always associated him as the horror guy, the guy who created hellraiser and that's about it.

Then I read Imajica, Weaveworld and the Great and Secret Show and was absolutely blown away!

I then googled what other people though of clive barker and the lack of discussion online about his books threw me. I absolutely loved all of the books but it seems nobody talks about them except his die hard fans.

My question is Clive Barker underrated?

And if so why arent his horror/fantasy books discussed and reccomended as often as other authors work like Stephen King?