I'm curious if this is an age thing? I'm in my early 40s, and I cant stand animated gifs, I find that I have to close my eyes if they are in a presentation, or move them off the page in a website like the OP.

But I see younger people making presentations at work that are littered with animations. To me it looks extremely unprofessional (both from the distraction and the usual childish nature of the images themselves), but its common enough that it's clearly within mainstream norms.