1) Well, he blew away the entity surrounding Brian, but you may be correct.
2) I understood all of the metafictional angles of the story, including the distortion of context directed against the Comicsgate movement, but what was portrayed as happening in the story is The Vision manifesting lots of superheroes from different eras, culminating in the original Human Torch burning away a conceptual entity with literal weaponised
Plot-Induced Stupidity/"because the writers/TOAA wanted it to happen".
This is typical for Al Ewing. Among other things, he has also had the Black Panther beat the Logos, and
Spectrum beat a supposed Beyonder-level entity. According to his "logic", anybody with sufficient willpower can supposedly affect conceptual entities, regardless of stature, since they are only ideas, and "pure imagination" (Technically Marvel writers are mostly just building on the imagination of Jack Kirby, and are gradually deteriorating the franchise into decadence and incoherence, but nevertheless) excuses a completely lack of rational storytelling structure and continuity.