You've got to talk to your crew on this because they're the one's who insist on running with this.
To be honest, at first I dismissed it for the reasons that you just pointed out but after days of hearing many many people running with the same rumor I'm starting to see the angle. Jay has a history of being petty as an MC not letting shyt slide. It could be that jay didn't like the Nas-Kanye collab and felt a way about it. Go back and listen friends which most think is aimed at Kanye.
Tight circle no squares
I'm geometrically opposed to you
Y'all like to try angles(triangles)
Y'all like to troll, do you?
Is it possible that jay saw Kanye hooking up with Nas as a way of trolling, tryna get an angle to get under his skin? Maybe. Is it possible that jay looked at Nas funny for working with Kanye knowing that he and Kanye were going thru some stuff? Maybe. One of those scenarios or both could be true. I just haven't seen any real evidence so it's all blind speculation. Nothing wrong with speculation amongst fans until feelings get involved. Nas fanboys immediate caught feelings over the possibility that that this might be a "competition" thing. Even if jay was tryna jab Nas and Kanye, so what? That's no need for fans to catch feelings. Nas is a grown ass man. If he feel a way his pen game is proven.
I claim no crew other than #TPC
And it STILL makes zero sense
Nas and Kanye worked together in 2005 on We Major and Jay had nothing to say
Nas and Kanye worked together on Hip Hop Is Dead and Jay had nothing to say
Kanye has said frequently that Nas is his favorite rapper. Jay had nothing to say.
But now, in TWENTY EIGHTEEN. After the I Declare War concert reunion, Nas signing to Def Jam, 4 collaborations, numerous joint concert appearances, Jay-Z proclaiming Nas one of the greatest rappers of all time, Nas saying “Thank God For Jay-Z”, and absolutely no HINT of bad blood.
NOW Jay-Z feels a way about Kanye working with Nas?
NONE of it makes sense