So, after looking at a clip about the supposed Yas ult outside of turret range thing...
I'm convinced its a bug that relates to which color side the Yas player is on, hence why it appears to be "out of turret range". That's my two thoughts on that. https://youtu.be/-uCkmaI0kvs?t=55 this part especially makes it seem like that in my eyes. (it jumps to 55 sec in the video where the clip is)