Regardless, as a pro-Independence voter you would want to see SNP seats go up here, even slightly, rather than go down, even slightly. The fact the SNP have lost ground rather than, say, gaining control of several councils, while the Tories have come from very low numbers to 2nd place doesn't bode too well.
What has probably happened is that a lot of pro-Union voters have flocked over to the Conversatives due to the states of the respective UK parties. This means these people are mostly concerned about avoiding/rejecting Scottish independence, rather than having complex reasons for voting Tory this time. I can't imagine why else there would be such a shift away from Labour and towards the Tories in the current context.
Probably not much has changed in terms of overall support for independence - SNP remain the biggest party, by a little less than before, while the pro-Union vote has coalesced in the Tory camp rather than Labour this time.
I'm disheartened by it, because I would have liked to see Scottish voters reacting to what is going on in UK politics more emphatically and moving away from the right. These past 7 years it's been nothing but loss after loss for me when it comes to politics so I'm anticipating more of the same.