Henri Barkey , in Woodrow Wilson (which is expert in these area's) says the reason is Iraqi Kurds realized PKK is danger to them also , because of their control

Henri Barkey , in Woodrow Wilson (which is expert in these area's) says the reason is Iraqi Kurds realized PKK is danger to them also , because of their control by only one person. He claim PKK is organization controlled by one person which don't like to be outside of the game (abdullah Ocalan) and do what ever he can to stay in conflict and therefore because of this reason basically iraqi kurds tend to ignore PKK because they realized this is dangerous actor to be involved with (or in some cases fight against them). The talk was in NPR, you can search "Henry Barky NPR Kurds".