Let's add to that, that modern SAMs now have HOJ modes. If you successfully jam them, they go into HOJ and home in on the jamming emitter.
You do realize that there are tactics performed by two or more jammers that can totally negate any HOJ guidance system. HOJ is nothing new or magical. In fact, they are rather easily defeated. I have alot more faith in highly mobile air based platforms with HDAM and combined jamming systems.