The funny thing is I agree, but I don't think I'll do it. The old version is just so bad I feel like I'd be throwing away money. I'm not internet famous so traffic is hard for me to come by. Can I justify a split test?

So the question becomes do I trust the experts? I do. Therefore this landing page is my new baseline -- I'll split test from here.

Given that it's a lead gen page, you could get some solid split-test data off $100 or so of spend on the advertising platform of your choice. However, I don't know if that's something you could afford. If it is, I'd definitely recommend it, but I can certainly see why you'd be inclined to trust the experts.

FWIW, looking over the "after" page myself, I'd agree that it's a much more solid longish-form sales page. You'll probably be fine using that as your baseline!