Since you're asking for opinions, I'll give you mine. The same reason they changed the finish on the blued version. Nobody liked the matte finish. Period. End of discussion. (from my POV at least)
I'm betting that in a year (or sooner), you'll see Ruger release a SS Hawkeye with the old Mark II style (or similar "shiny") SS finish.
Of course, that's WAG.
That's not my WAG but I hope you are right. I prefer the old MK II style to the "matte" finish on the all weather. BY A LONG WAY.