Agreed, but there's this idea out there that "lossless" means some kind of magic bullet that makes the sound exactly like the master in the mixing studio.
Lossless only means that its a losslessly compressed version of whatever PCM or WAV files were sent to the encoder.
If the master is 24-bit 96kHz but the encoder downsamples and quantizes to 16-bit 48kHz and boosts LFE by 10dB along the way, they're obviously not the same thing, despite the lossless compression.
In the exchange you had with Bulabone, the subjective phrase "DTS has so much more power behind it" is obviously subject to scrutiny. If the DTS master he's referring to was mixed hot, or the TrueHD soundtracks he's evaluated are mixed cold or the LFE track is -10dB versus a similar DTSHD track, those differences should be compensated for prior to evaluation, and of course could lead to the impression that one codec is "bette" than the other. It is possible, though, that his 1910 has an issue with one or more decoders that helps to strengthen his opinion of one codec versus the other as well.
It would be great to have is a test disc with pink or white noise and/or frequency sweeps encoded in the popular new formats so we can evaluate our playback chain to see what each component does with, at a very minimum, the playback levels. I recall there being significant level differences between Dolby and DTS encoding back when DVD was king, even with plain old pink/white noise.