That part seems very much apples-to-apples with what's happening now.
I'm not sure, but there's a different dynamic at play. Both "revolutions" had (and have) great potential to allow individuals to make more informed choices, but in the case of Guttenberg the educational bottleneck to get there was still narrow... These days for some reason the bottleneck is more if a self-imposed barrier.
Although education is still a factor: I try to read news sources from the full range of points of view, but they all may report on something like the latest bit of research-by-PR release differently. I have enough of an education to know I should seek out the research publication itself and I understand how to approach a formal writeup of research to provide me with at least a low pass filter against poor quality work. I have enough of an education to be skeptical of simple solutions to complex problems and instead thing about edge cases and failure modes or poor incentive structure.
I can absolutely still be wrong, but if I'm wrong I will still have failed after going through a more rigorous process in an attempt to figure things out. I'm still more likely to ultimately accept a result that runs counter to my initial-- perhaps emotionally charged-- response on an issue as a result.
And perhaps of equal importance at a time where tribal loyalty often demands complete condemnation if anyone outside the group, I understand enough to realize that people with another viewpoint aren't inherently bad/evil/anti-patriotic because reasonable people can disagree, less reasonable people are still complex and not one-dimensionlly defined by a particular belief, and lines between spectrums if belief and just that-- on a spectrum rather than clear cut all or nothing lines in the sand.
I don't know... Maybe that's just me patting myself on the back. But even if educationally institutions can be inadvertently biased towards specific viewpoints, I still believe they expose people to many more ways of looking at something from multiple directions, in a less emotionally charged venue than social media in the internet. I've had teachers that I consider to be the model for how that should occur when I found out afterwards that the points of view they were encouraging me to consider went completely counter to their own strongly held beliefs.
Absent straw men, you aren't going to get anything near that approach from whatever talking head you're watching on TV or YouTube, or captioned meme photo that comes across your social media feed.
When Guttenberg made the press, access to it's output had a strong filter: most people couldn't read, and anyone who could read was highly educated for the times. Social media doesn't have a filter like that, and higher levels of education generally correlate to lower levels of belief in things like conspiracy theories.
Also keep in mind that the T+60 years conflict you're referencing, while greatly assisted by the printing press, was also greatly pushed along by the masses being told what to think by their preachers or by powerful elite looking to destabilize the status quo to their own benefit. The peasants of the peasant revolution weren't reading criticisms of the Catholic Church and coming to their own country conclusions, they were given emotional polemics by people like Storch sparking extreme levels of fanaticism.
So, yes, there is a lot in both situations about power struggles with the established order, but most people are being influenced more by emotionally charged arguments and tribal loyalties than they are by increased access to level-headed rational presentations of an issue.