Nah I was a bit young for that in 2010 and once Stewart and Colbert combined their rallies it became clear it was going to be more of an entertainment piece than a rally so I wasn't about to beg my parents to let me go. That was actually a large factor in why I stopped watching the Daily Show - it seemed more like a farce after that.
I think Jon Stewart got a lot of things wrong around that time, though he wasn't the only one. There was a narrative he was putting forward that the growing political divisions in America were caused by the media itself being extremist, which is a very self-centered position for a media person to take. I think it was a mistake a lot of us made, though - we all vastly underestimated the extent to which the media was preying and capitalizing on existing political, economic, and racial divisions in this country, rather than creating them.
Between welfare cuts, NAFTA, tax cuts eroding budgets, and the 2008 economic crisis there were a lot of opportunities for people to develop more extreme political views, either distrust of government, distrust of large corporations, or distrust of both - all of which tend to pull people away from the center, and given America's history of suppression of leftism starting in the 50's and 60's, that tended overall to pull Americans to the right. Campaigning to change the media's language around these issues proved ineffective because it didn't address the reasons why extremist media resonated with so many Americans - lack of control, stress, racial tensions, etc.
I think that's also an example of why what Jon Stewart did (highlighting issues instead of proposing solutions) was overall ineffective or even made issues worse. When you present issues in a non-solution-oriented, non-empathetic way, it is very easy for your audience to draw conclusions about the causes of those issues that blame everyday people for being bad and corrupt and stupid rather than subject to external forces that make them bitter, distrustful, and short-sighted. Which is, in its way, a passive form of extremist media - I think if you're saying "look at these people acting like idiots" enough your audience stops thinking of them as people acting and starts thinking of them as idiots.