No. There's this misguided belief that it is the MCN who should be responsible for the content. An MCN when you boil it right down is nothing more than a privately run Adwords. They include "nice to haves" like music libraries and such, but at the base they're just ad agencies.
In the world of old media, the ad agency can't be held liable for the content shown that they advertise over, only for the advertisements themselves. And yet, YouTube has been unable to divert blame for hosting the infringing content. So instead of properly fighting for true fair use doctrine, they caved via DMCA to big corp. But DMCA wasn't enough, big corp didn't want to have to do work manually, they wanted automated. And thus ContentID was born, from the ashes of music industry lawsuits. And that's what this whole thing is. That's where the misconception comes. A Managed MCN, is just a big YouTube channel catagory. The main company takes legal responsibility for all channels under it's wing. It has strikes, just like the rest of us but they're spread out over the managed partners. And in return for the legal immunity, YouTube gives it immediate monetization.
Being affiliate means you're responsible for your own content. That's it. The MCN's are still just ad agencies. And now, they're not responsible for your content at all, nor should they be. All they do is supply ads at a better rate (hopefully) than Adwords.
It's also worth noting that partners didn't have immunity from ContentID. What they had immunity from was the Adsense Review. ContentID would hit channels regardless of affiliation. It's just that along with this change, YouTube pooched a few things which caused a significant number of claims that shouldn't have happened. This was followed by enterprising copyright trolls capitalizing on the errors.