Hehe... "Records I haven't understood properly yet (or never)" is a good pile to have and to revisit. I've got decent pile of CDs fitting this myself.
Mr. Frosty is also for me the only track on that album which I can properly relate to and recommend (as with a lot of other Aphex' more wild/chaotic stuff)... I guess my acceptance (or rather appreciation) of glitch as aesthetic only goes so far, but I still require a form of identifiable pattern, not necessarily harmony, as abstract "carrier signal" underneath. Pure glitch, without pattern, is maybe purely sonically interesting, at least temporarily, but then quickly erodes into just noise (as in "non-sense") to me and I find it rather boring (and often sonically abrasive/jarring, but I guess that's the whole point)...
Re: my video — I had so much fun editing these fragments to the music... Glad you like it! The pebbles we painted at the end of the video (with my kids) are from Birling Gap and were the inspiration for this whole project... :)