The helicopter incident seems such a long time ago now, with little new info.
The interesting thing for me was:
1. it was clearly an accident, given the context of the raid
2. it clearly had a completely standard burnt out blackhawk main rotor head. It may have had some sort of stealth covering that may have been burnt off, but the main rotor head mechanics were identical to a standard blackhawk. There are clear photos of this.
3. the tail was unburnt - having collapsed the other side of the wall. this was clearly unlike any known helicopter at all - and clearly nothing like any known standard blackhawk derivative.
This proves that the helicopter was real, and an unknown type, likely based on a blackhawk, with significant modifications related to stealth.
The US has a long history of trying to build silent helicopters going back to vietnam. Much of this is online.
I don't see the need for any conspiracy theories - its just a bespoke special ops helicopter that is still classified for reasonably obvious signature reasons.
I'm looking forward to seeing one for real, but won't be surprised if its 10+ years before its made public, if ever.