There's several hours of time lag between the article being posted and OP replying (as I write, 13 hours when the article was posted, 8 hours when OP linked something) -- you and I must have very different definitions of instant!
Throttling's normal and expected. OP indicates "shuts everything down" though -- which sounds more like the CPU turned off to prevent damage. That shouldn't happen if the cooling is working properly.
why bother to read past that? save yourself some time.