It sounds like confirmation bias to make a universal principle out of not needing a highly usable and accessible landing page/web site based off your success in

It sounds like confirmation bias to make a universal principle out of not needing a highly usable and accessible landing page/web site based off your success in a narrow B2B context, especially if you product is spreading word of mouth. Imagine how many inpatient people got frustrated with the video/landing page on mobile and closed the page? Are you running analytics? We could prove bounce rate against your theory of not needing a highly usable website UX. It's just good for business to make the user interface as seamless and friction free as possible to get users the information they need at a glance to make a decision and covert faster = more conversions and more revenue $$$