The linked website has an horrible animated background picture. Reading the text is almost impossible with IE 11. Screenshot: http://postimg.org/image/46p2krx95/
Meh, delivering a bunch of text with some images and hyperlinks inbetween was pretty much a solved problem twenty years ago. It's nice that there's still progress being made towards doing more interesting things on the web, but if you have trouble pushing text and images to IE the problem might not lie with IE.
Ask the JQuery devs, Chrome causes them more troubles than all other modern browsers combined (IE9+, FF, Safari, etc).
I am well aware of the history and I hate IE < 10 too. I use FF as main development browser, and beside others of course Chrome and IE 11. The trouble comes when people only test their website with Chrome. I am using IE 11 as I have to at my workplace and it has by far the best UX (IMHO). FF still uses only one process and cannot handle my habit of using dozens or even hundreds of tabs in an optimal way.