There are various reasons why I picked no, one of them is an opinion that Russia is too big as it is. But, its mostly due to logistical over reach, because as it was, Russia had difficulties keeping the far east properly supplied. I do not think that having one main rail link for the entire country at that time was very wise, because if Russia had Manchuria, and China got into a war with them, it would be fairly easy to sever the rail system and cut off supply from the western part of Russia.
I'm just going based off what I understood at the time to be true; Russia had one rail line that was barely functional to the far east, only got completed due to the R-J war iirc. Said rail line was not terribly far north of the border with China/Mongolia.
For various reasons, Japan getting Manchuria helped accelerate the governmental changeover for Russia, but that system was already breaking down as it was and would have necessitated change somewhere down the line regardless.