TBH, I could relate their(and my) feelings on this scoring rate issue. If you had watched today's play fully, you would find in the morning session there was simply no intent from either of the settled batters to score any runs (even the bad balls were not scored off). Similar thing happened in the post lunch session after the fall of Ashwin. It appeared that we were going nowhere with all this time wasting non-run scoring tuk tuk approach. This approach, somewhat reminded me(possibly many others) of MSD's (infamous) drawn test in WI few year back.
I believed(and still believe) if we had(have) more overs to bowl at OZ batters then we have got greater chance of winning this test instead of ending up in a dull draw.
The above could be the reason you saw those cynical posts from Indian PPers(including mine) on scoring rate.