Also in most of those companies the marketing team doesn't talk with the product team, as a result the marketing content has nothing to do with the actual product
Looks like they do direct sales which makes things like loading the website and "below the fold" significantly less important. Their focus is on lead generation so they can get sales folks talking directly to whoever the buyer persona at the company.
Source: I'm a PM at mid-size enterprise software company with 6 1/2 years experience.
The way the site is made, if it feels like "just marketing hype", it does contribute (I agree with not-so-much-relevance) to the opinion I form on the company and/or the product (not unlike as it was the case once for the business card, from the way it is printed, the material, the titles given to the person before you, etc. you can derive some indicators).