I used to be a regular reader of Lapham's. Back then they'd more or less present folks' words without any comment _except_ the implicit comment of the other pieces in the magazine. Considering that https://www.laphamsquarterly.org/technology/technical-error is also present in the issue I'd say they've kept this structure up.
That quote of Kaczynski's
seems to recur in my experience, and I suppose I understand why; out of his whole manifesto, I recall nothing else that so succinctly states his thesis. (If you haven't read it, that such an extended excerpt should be fairly called "succinct" may yield some idea.)
In any case, as implicit criticisms of Taylorism go, this one doesn't strike me as being worth much, because for all his intellect, Kaczynski lacked the wisdom to think through all the consequences of the success toward which he aspired. I have tried to amend that error on his behalf, he being presumably unable to do so from whatever deep hole he's been thrown in. I can't speak to whether he would appreciate the likely outcome past the revolutionary moment, however fleetingly transcendent that might be - I don't think he understood that all revolutions become both permanent, and nothing like themselves. But neither do I feel any real need to gain his imprimatur.
The consequences of Taylorism can be, and deserve to be, criticized on their merits, and without reference to Kaczynski. I haven't been a close reader of Lapham's, but what I know of their reputation suggests they could be expected to do better for such critique than this.