Not limited to Haswell and early Broadwell, some Skylake CPUs lost TSX as well.

https://www.reddit.com/r/hardware/comments/44k218/intel_disa...

Also some Skylake i5s and i7s had TSX issues, but I don't know whether Intel managed to fix them or is going to disable TSX. So far ARK lists them as supported.

Yeah I'm not holding my breath waiting for TSX to be stable enough to worth investigating.

I wouldn't expect anything different, but saying that disabling a feature that was advertised and paid for it's a good thing is plain weird. A good thing would be a recall or reimbursement.