Since a weeks worth of posts have been lost, I thought I should add this:
I have an Onkyo 875 with the latest DSP software update (and firmware, but that is beside the point here). I experienced some odd popping and audio dropouts on H&K2, but I would not characterise them as the "DTS bomb". The "bomb" was very distinct, as in LOUD and substantial. The pops and audio quirks on H&K2 seemed to be confined to my rear and surround back speakers.
Fearing some new DTS-HD Master Audio snafu, I switched my player (Samsung BD-P1400) to PCM and the problem went away. However, using this configuration I would only have been hearing the "DTS core".
I chalk this one up to poor disc authoring on the part of New Line. In addition to the above, the "entering Alabama" chapter choked and died on my player, which oddly enough threw playback of the movie back to the "watching the laptop on the airplane" scene from the begining of the movie.
I thought the second movie was weaker than the first, but still an enjoyable rental.