Your theory works on me... I struggled quite a bit with that first line...

It's my gift!!

neato

I got screwed up at the end........the "tghuhot" messed with me for a second.

And yuor csrue.
Wtih gaert pewor cemos gaert rtilibisnopsey.
May you use yuor prewos for good.
Mkae us puord gaert hreo!

Yeah, I read it without problems, except uesdnatnrd because I thought it was a space between "ues" and "dnatnrd". But other than having to read that twice, I could read the entire text without pause.

I had read about that theory before, pretty interesting stuff, how the human mind reads, isn't it?

And no, I won't fall in the cliché of twisting the order of the letters here

d= .ʇsod ɹnoʎ ɟo sɹǝʇʇǝ1 ǝɥʇ ǝ1qɯɐɹɔs oʇ ʎzɐ1 ooʇ ǝɹ,noʎ ǝsnɐɔǝq s,ʇɐɥʇ

More than reading words rather than letters, it's also about context forming a sentence that makes sense.
And as Hyperion noted, some are not that random. For example while Uinervtisy is pretty jumbled, it comes right after Cmabrigde, which only has two letters swapped and both together form a very familiar phrase.

The human mind is still pretty amazing regardless.

How the hell!?  I don't even remember drinking!

I kenw taht bfreoe, but stlil, it's prtity asoeemwe!!!