Well if you enlarge the scan on the screen enough, yeah. 2400 dpi 1:1 would be a huge image. But if you print it, you won't see it unless you go really, really big. And if you display on the web you won't see it unless you crop a tiny bit out and make a big image out of it. If you zoom in on the scan, well, of course you will see it. And what is your final display? Someone looking at a 2400 dpi from 4x5, a 9600x12000 pixel image (roughly, I know it's not quite actually 4x5) at 1:1? The only person who is ever going to do that will be you when you scan it.
I think it's more correct to say it's designed to scan well, but "designed for scanning" sort of implies, or seems to, that it is not as good as prior films for wet printing and that doesn't seem true to me. The Portras are excellent films (as is Ektar. I know you'd love some of that old Ultra 50 but I can tell you it could be a PITA to color balance in wet printing. Once you nailed it though it was really super saturated. It seemed to fit the Fuji paper my lab used better than the Kodak paper I used; at least I was never able to print it quite as good as they could, while with Kodak and even Fuji films I could always do as well or better.)