Notwithstanding, among other things, the laughably ridiculously short travel time between Earth and Qo'noS, how could Kirk and his team get all the way into Qo'noS's atmosphere without being detected? This is the capital planet of the Klingon Empire! Where are the orbital defenses? Where are the orbital sensors? Where are the home system's assigned battle cruisers?
It appeared to me that Qo'noS was war-torn and partly destroyed by the collision with Praxis. They were able to marshal a force to repel what they saw as Kirk's "attack" but it took some time. I posit limited military resources.
[if you're talking about STiD that is]