Ridiculous. Horowitz has more than enough intellectual candlepower to "comprehend" Chomsky, as do most of the participants in this thread. Chomsky's work, even his "contributions" to linguistics, are not difficult to understand at all. It's just a matter of digging in and doing the work.
You may have a small point in charging that Horowitz "copped-out" by not doing the work, but you haven't a leg to stand on if you think Chomsky is some kind of genius above the comprehension of the average person.
Also Chomsky is not a stickler for facts, as you and some others in this thread have said. He distorts them mercilessly, and sometimes manufactures them, all with the goal of furthering the construction of his particular castle in the sky.
Not difficult, but boring, boring, boring.
I read a book of his once, never again!!!