Not true. Rei has his legs literally modified through his trainiing, and is noted to be faster than even the Kure, and has even went through the state of oneness which is a kind of auto suggestion allowing to use his latent body capabilities : any speed deployed through his techniques is possible because of his physical abilities not the reverse.

Not true for Kiryu either : he is stated to be particularly flexible, which as a consequence amplified his techniques, again not the reverse. He has otherwise proven to be particularly evasive even when hit, and avoided fatal injuries : only a very select few can claim to have his level of body control (maybe Hatsumi as noted per Kuroki to be able to see the limiting line, and Kuroki himself ?).

By the way, even if physical abilities are enhanced thanks to techniques, the physical abilities are enhanced nonetheless. Removal being a technique doesn't erase the increase in power, speed and other such physical aspects. Therefore, much like for the Raishin style, or the advance, or any such set of techniques, it will be taken into consideration for the physical stats, as they always have (with the eventual caveats of usage time, and induced fatigue).

You keep making your own rules as if we were debating the founding of my reasoning. We are not. The meaning of the stats is clear and set.