Linking the 2010 "remake" with the original canon was a smart move
It makes the franchise feel entirely whole now and gives the 2010 movie some purpose and not being the black sheep just left to wander solo and this odd entry. I still hate how they didn't just call it "The Kung Fu Kid" as even Jaden Smith referred to it as once production ended. Marketing move understood but made ZERO sense given the concept and setting.
As far as the continuities being linked goes, I guess you can say I called it because years ago I tweeted to one of the Cobra Kai creators how they could link the remake in the same universe since it technically uses different characters and setting. If they used the original character names and or the same setting it wouldn't have worked obviously. Of course, this creator would tell me only the first four are canon with the TV show, but here we are years and the remake is now officially part of the canon. I was shocked.