Flutzing is illegal. The ISU will not even mention it.
You mean the word "flutzing" is illegal in the sense that it's not used in official documents? That's because it's skater-slang, and the official documents are written more formally.
Instead it is called a Wrong Edge Takeoff which is impossible since there is no name attached to the jump.
There absolutely is a name attached to each jump. There are lutzes with wrong edge takeoffs, and there are flips with wrong edge takeoffs. The phrase "wrong edge takeoff" can apply to two different errors on two different jumps. (It just so happens that these particular errors blur the distinction between those two jumps.)
Every protocol names the jumps either Lz or F and then labels those jumps with an "e" if the tech panel sees an incorrect takeoff edge.
You'll never see only "e" or only "WET" on a protocol. The jump is always named.
There is more to describing a Flutz beside a WET. It carries no counter rotation and it rotates and lands as if it were a FLIP.
So what do you call it when there is counterrotation that is released 0.1-0.2 seconds before the blade leaves the ice as opposed to 0.1-0.2 seconds after leaving the ice? That's a lot more common scenario for "flutzes" than never showing any counterrotation at all.
In my experience, a flutz is more difficult than a flip
because it starts with counterrotation, even though it doesn't maintain that counterrotation quite long enough to count as a completely correct lutz. It's a flawed lutz.
And
all jumps land as if they were a flip -- or a loop, or an axel, or a lutz. The landings are the same regardless of the takeoff. They don't define the name of the jump.
Well, intentionally landing on the other foot, as in one-foot axel or half-loop, might affect the name of the jump. And unintentional jump errors might affect what people colloquially call an unsuccessful attempt. The basic name of the jump has nothing to do with the landing, so therefore landing errors have no effect on the official name of the jump.
The basic name of the jump has everything to do with the takeoff. Sometimes there are errors on takeoffs. If the errors are mild or moderate, the jump is still named according to what it was intended to be, and the errors are identified and penalized. Only when those errors are EXTREMELY SEVERE, to an extent almost never seen at the elite levels, would the basic name of the jump change.
"Flutz," "toe axel," and more recently "lip" are slang nicknames for specific kinds of errors on the lutz, toe loop, and flip takeoffs, respectively. They're not official names.