If he felt he was off beat for one song that’s fine- ye didn’t really say anything wrong regarding nas in this rant if that’s how he felt as a producer for that song. He didn’t trash the album
I seen a few fans saying something similar back then bout Ye giving away albums to others. Most were asking for GOOD artist to get projects for some time by then anyway.
Especially with Teyana. Her fans felt Kanye was ignoring her and that album was to correct that.
He seen where he's supposed to be and feel like the ones he's helping are holding him back from that. I don't know enough to say he's right or wrong, but I can see why he came to this conclusion a bit.
In the end, most if not all of the folks he mentioned dropped him. Its awkward.