The author writes “it is important to note that the Vatican…” but then changes the entire meaning of the sentence actually found in the Directory on Popular Piety. That is an example of someone who presents her own personal opinion and claims that it is a teaching of the Vatican. The Vatican document says nothing about “rogue angels”–that’s something the author simply made up. The statement itself is absolutely false.
The Vatican certainly does approve of venerating the archangels whose names we do not know for certain. The prohibition is against private persons assigning names to angels. The article is misleading at best. The absence of a known name is not the same thing as a “rogue angel” (which seems to mean some kind of false angel) and yet the author chooses to combine these two concepts into one.
Most of what she says is true and trustworthy. But that part about the names of the Archangels goes too far. She imposes her personal opinion and tells her readers that this is the “teaching of the Vatican.” That’s not the case.
If one wants a canonical argument for the name Uriel, then look to canon law. The Directory on Popular Piety (which is a rather low level of special law) is dated December 2001. In the Latin Code, practices (“custom”) which are contrary to the current law enjoy the force of law if they are more than a century old, or if they are from “time immemorial”
Can. 28 Without prejudice to the prescript of ⇒ can. 5, a contrary custom or law revokes a custom which is contrary to or beyond the law (praeter legem). Unless it makes express mention of them, however, a law does not revoke centenary or immemorial customs, nor does a universal law revoke particular customs.
The Directory #217 states
…The practice of assigning names to the Holy Angels should be discouraged, except in the cases of Gabriel, Raphael and Michael whose names are contained in Holy Scripture.