Well, IMO those klipsch are a little overpriced. And while I do think quality matters, Atmos is very forgiving, and you can save a little bit on height speakers. There are a LOT of speakers that will do a great job up there, but as we tend to do, I’m recommending what I have(rsl c34e’s),since I can speak directly to their performance. It also happens that they perform very well, and imo are nicely affordable. I have used other IC speakers and ESPECIALLY for the money, these rsl’s are exceptional.
In fact before I installed them in my ceiling, I made some temporary enclosures for them and used them as my mains in our BR 5.1 system. They image sooooo good. They also have a roughly 15° baffle so they should cover your seating very nicely.