i know where your comments come from, that is not official, not even TV Zvezda, that by the way is a much better source that any forum, says that, AUC and Rostec do not say that.
You problem is simple, i never said it is superior or inferior, the engine can not be compared unless you have both engines or three engines like they have done with the MiGs or Sukhois in western air forces.
From the historical point of view it is interesting to see what the Eugeny Marchukov says, who is he first? he is the director of "OKB A.Lyulka." Branch of PJSC "Ufa Engine Industrial Association" (UMPO).
why it is worth to be posted, reason he is part of the manufacturers, a person who makes the engines, independently he is right about his assertion, or he is wrong as a Fanboy and i am, i like to hear his comments the guy is making the engines.
If you like his assertions and comments that is your subjective part, if you believe it or not is subjective.
It could be true, it could be not true, however i do not need argue with you because neither me or you have the three engines, we are not in a workshop comparing them, neither we are technicians dissecting each and every engine, thus i see no point to argue about the veracity of his assertions