Yes, too good of shape. I know this is scifi, but l felt that the writers may have stretched credibility by making the centenarians, Kor, Koloth, and Kang as incredibly robust and combat-able as each one of them were.
I wonder if the writers, when they wrote "Blood Oath", intended to create new canon regarding Klingon lifespans (150+ years); but more importantly that Klingons, even at the end of their natural born lives, were still extremely vigorous, robust, and capable of handling a bat'leth. Where were all the other TOS Klingons, who didn't die in battle, during the TNG/DS9 era? Would it mean that Worf and his generation of Klingons would still be fighting ably during the next next next generation?
The new canon now had to fit the story that they wrote.