Note that Sarah Gooding enlarges (scales-up) non-scaling GIF emoticons, alongside designed-to-scale SVG (vector graphics) versions ... and then shows the comparison-image, in JPG format.

Why did she need 3 different image-formats, in order to defame the innocent old GIF emoticons? Because, dear reader, each of the different image formats is better than the others, in certain application & use contexts.

In certain situations the supposedly-antiquated GIF images will easily beat the socks off their supposedly superior SVG versions, hands-down.

The truth is, you can get more mileage out of each pixel, with a (hand-optimized) GIF. SVG doesn't savvy pixels (or hand-tweaking) ... and yeah-huh, there are contexts where pixel-ignorance looks as dumb as Sarah's blown-out GIF emoticons.

GIFs are good. SVGs are good. JPGs are good. And several more ... all have their place.