Very weird, clicking this link in MobileSafari on iOS8 simply shows a downloaded .webm file and an offer to open it in VLC-for-iOS, which does work for playback... Trying to navigate back briefly flashes something that looks like a blogpost and then just shows the .webm download file window again.
Uhoh, thanks for mentioning this. There's an embedded iframe with the webm video in the blog post. Not sure why this would act up in mobile safari though.