One key difference with what you've done though, is that through a link on the bottom I can at least figure out what your product does and see a sample workflow

One key difference with what you've done though, is that through a link on the bottom I can at least figure out what your product does and see a sample workflow. Some of these sign up landing pages have nothing in the way of explaining what something is. But maybe what companies are finding is that people respond more strongly when details are withheld from them.