I tried both solutions you said, but in the end I'll keep it that way. It really feels like there's something missing when removing all the finishers of that particular part in each kiai and changing it to K makes the note right after less impactful.
I changed it a bit, it's not really the same way you present it but after carefully listening to the drum and the vocals, the best emphasis I can create while making it a bit less dense is xxx x x xxx xxx
I added it because it felt nice introducing the kiai that way even if there was no emphasis for it, but now that I replay it, it doesn't it the same. Removed it
Forgot there was a finish at 00:48:307 (274) - 02:00:307 (731) - rechanged it to k ddd k and d kkk d. I also changed the next stack of note to the same formation for polishing.