I share with the reviewer's lack of enthusiasm but not his arguments. The recap page establishes Black Panther as the voice of conscience in the Illuminati, so it makes sense that the story would begin with a crisis that leads him back to the others despite his misgivings. And Hickman wouldn't be Hickman if the villains weren't part of a mysterious world-hopping cabal whose members dispense gnomic pronouncements between energy blasts. All that just seems like a given.
So, the issue works in broad strokes, but the page-by-page plotting and storytelling is all over the place, with frequent violations of the Aristotelian maxim that probable impossibilities are preferable to improbable possibilities. In other words, it's business as usual when a dimension-gate (or something) opens in the middle of the jungle, but problematic when it opens right next to a superhero and (if that weren't enough) a rhinoceros charges at the perfect moment to catch his attention. Likewise, there is nothing to complain about when a laser-toting sniper from another world picks off a supporting character, but problematic that the attacker never fires a second shot while T'Challa kneels over his dying protege. Is there suddenly a tree in the way? Does our hero trust his enemies to hold their fire for the duration of the touching death scene?
These flaws in the story's internal logic are distracting but not fatal. I can accept a coincidence or two for the sake of compression when the alternative is a page of exposition about how Black Panther's sensors picked up an anomaly near the training grounds for Wakandan Junior Astronauts, or whatever. But then virtually every moment in the issue's main action sequence involves some kind of technology or ritual that we have to trust will make more sense later. The red-filtered dimension bubble, or "incursion wall," remains an unknown with convenient rules. Are we still on our earth? Oops, teleportation sucks in here. Also, I'm not sure why the world-killing bomb thing blows up the planet in the sky instead of the one that it's on (but whatever), whether the last-minute punch by T'Challa actually changed anything, or why Black Swan had to kill White Manifold. These small questions make the stakes of the battle murky, notwithstanding our now instinctive knowledge that any unknown device spewing Kirby-dots should be turned off after its owner is punched in the head.
I loved the bit where the villains role their eyes at the prospect of an Earth where English is the primary international language. It's neat that Black Panther fights Black Swan (although I fear that she will become Ultimate Natalie Portman in comment threads). But the good bits are buried under distractions.