Mike, if you're happy that's all that matters. 12 ksi is half of where the Woodmaster CT performs best. Your photos shows it still performs well, but I'm sure at a pretty slow feed rate. If you're happy with that, that's fine with me. Horsepower allows you to utilize the full cutting capacity of the blade, assuming there is enough tension on it. I have not found any evidence of over feeding yet with the Woodmaster CT. That thing is a wood devouring monster. I regularly slice 12" wide veneer. Horsepower is key to making that an efficient process. I remember slicing 10" veneer on my 14" Delta bandsaw, with a blade at 12 ksi, coincidentally. I made a lot of veneer that way but it was a slow process at best and good quality required constant attention.
You can argue all you want but adequate tension and horsepower make for efficient operation, consistent high quality, and maximum production from the blade.
John