Both is good. The linked page is a marketing page built to impress. The OP is an content page built to inform. Sometimes you want marketing pages built to inform [0]; sometimes you want content pages to impress [1]. It's always a tradeoff, but I can guarantee that your idealism doesn't correlate with harsh reality.

[0] https://aws.amazon.com/s3/

[1] https://ciechanow.ski/

That adaline.ai link is not just a marketing page. If you had scrolled further down this would be immediately clear to you. And even if it was a purely marketing page, it would have missed the mark by a long shot.

My idealism of what a good website ought to look like or how it should communicate doesn't have to correlate to reality for my opinion to be valid.