If does by more than 15% in some scenario according to intel and all the notion of pushing things on E-core is based on that premise.So if taking it out doesn't have a negative performance impact overall,
Just think about the same scenario for which a thread botter an important thread on a P-core you described, why would it not with Hyper Thread ? It is now more likely to happen than with hyperthread no ?that don't use much time you toss those