In catalog design the cover often has little information. A photo, company name, maybe a website, and a header possibly with subheader seems to be fairly common.
For an example here's a Ford Fiesta catalog:
They could've put additional copy. The HP, Best in Class, ample cargo space, etc in some of that white space and still had a nice design.
Here's a Pelican case catalog cover:
Again, they could've chosen a different design to fit a small blurb about their cases build quality and durability on there beyond the "Watertight Protector Cases" tagline.
Is there any factual data to support this design over jumping right into the body copy on the cover? Understandably there's a historical trend from books of... This is the cover, open the cover and then you have the content. The question is, in current design of marketing collateral does any data indicate a relevance to keep with that precedence?