See, in the medium to long term I wouldn't fall off my chair is those actors did become important players in Russia's political bearpit, but now, or next week, or in 3 months, possibly even 6 months? Nah.
There's also the danger that in highlighting/celebrating Russian internal opposition we give the Putin regime ammunition to portray it as being a western front, enemies within, traitors and all the other good stuff that justifies them being sent off to count trees in Siberia.
I also take the view that a hard military and economic defeat is a prerequisite for serious internal opposition - which requires enduring, large scale military and logistic support to the Ukrainian state (and possibly groups if the state apparatus is destroyed?) - though, of course, I understand that a more peaceable Russia isn't there only potential outcome of such a defeat...