Within that thread is a link to the free Prolost dehaze presets that are dead simple to install ...
Not as free as he makes it seem - it'll cost you at least $0.99 (his minimum).
So who is screwin' who ? The cheapskates who'll try anything to save a buck albeit for crippled functionality or Adobe who are purposefully disabling their stand-alone Lr when (a) there's patently no need to and (b) it's not a question of new feature updates being only part of the CC software development cycle ?
Six of one, half-a-dozen of the other.
... the preset route within Lightroom is more elegant.
Hmmm ... 'elegant' but within the EULA ?