In reply to Joe.

"...Bootstrap or Foundation5 looks exactly the same: ginormous single tagline in 60px font taking up a full screen, an ultra-hip full-size background image (of a laptop, a tablet, a moleskine, a cup of coffee…) swallowing up a full screen, a smooth scroll to the next screen with three lines of clever but meaningless text taking up yet another full screen."

You --really-- haven't looked at too many Bootstrap-based sites. A very small minority go overboard with the features you describe.