I'm afraid you've been egged on.
This was a perfectly acceptable LOR, the kind that adcomms see all the time. In fact, likely better than most professional LORs. Adcomms care how well the person knows you as a LS candidate (established) and that you have his highest recommendation (established).
You called this letter horrible, mediocre, "too typical." You were expecting a lot more from him, he got lazy, and/or it was too short. You even said something along the lines of expecting someone to spend a day on a LOR for you -- really? It's not too general; it was clearly personalized and not a form letter. You say he didn't have the time, motivation, and energy, but maybe this is the sum total impression he has.
It was not a detriment; the only concern you might have had would have been sending more than necessary. You call the others presumably good, possibly great. Yet these were your expectations of *this* one, too, right? I'd have left it.
BTW, the typo doesn't reflect on you at all.
At least you didn't ask him to revise it. If someone asked me to revise a letter like that, you bet I would!
Good luck, knock 'em dead.