Despite what some people seem to think, Season 4 is not a universally loved bastion of quality television.
Oh, I agree. Demons/Terra Prime and In a Mirror Darkly are the only episodes of that season I rate high and the latter is largely because of the Cool-Factor of seeing a TOS ship again. The Augments storyline, the "Lets Fix the Vulcans" three parter and the two parter dedicated to Klingon foreheads stand out as being barely watchable, imo.
In fact, watching Terra Prime I was actually disappointed that the series was ending, because if they'd made more shows like that I would have watched more regularly. Then I saw These are the Voyages...
While not a huge fan of the show I am glad to see the Trek Lit writers trying to undo some of the damage done by the finale. Reading this thread has me wanting to read The Good That Men Do