Ok, I'm going to ask everyone here to imagine a scenario for a moment..
Imagine listening to the same thing.. over and over and over and over and over again.. in a relatively condensed timeframe, while testing one of these discs...
..you're presented with MLP surround, DTS surround, Dolby Digital Surround.. gotta check em thoroughly in both DVD-A and DVD-V modes, not everyone's got a DVD-A player after all, matter of fact most folks have DVD-V don't they, yet that DVD-A's got to be ironed out as flat as it's VIDEO-TS... so, anyway, I digress, basically you're tasked with going through the entire workings of that disc..
a disc that's already had countless man hours spent working on it by a team of professionals creating it and putting their expertise together as it is.. "just" the disc.. not the music, not the mix, not the contents, all that is a huge deal in and of itself of course, I mean "just" (in big inverted commas) the DVD as a physical object/storage device with the eventuality it will be a consumer product end users can actually enjoy all of the content of without any hitches or glitches...all before a tester's even got anywhere near it..
..and when they do, perhaps consider the front to back, top to bottom, inside out, upside down exhaustive testing that goes on.. from splash screen to video content, with all the menu function, rollovers, tracklists, back buttons, audio select menu's, etc along the way.. (essentially every aspect of functionality you can think of)..
..and then you go through it all over again in 2.0 channels..
..and then you go through it all over again on Blu-ray..
.. in LPCM surround.. and then in DTS-HD MA.. and then in stereo..
..maybe a bit of ear burn out/listening fatigue creeps in along the way.. over the passage of time where hours turn into days.. along the way errors and issues present themselves and you go through the same testing procedures over and over again with revised test material..
now, given all of that, does an automatically inherent narrower stereo image compared to a lovely wide open surround field with a Steven Wilson 5.1 remix seem totally incongruous in that kind of scenario to you.. could you be wrong footed by it, not realising it was actually mono as opposed to stereo that just sounded far less engaging and exciting than the visceral 5.1 Steven Wilson mix you'd now become only too well acquainted with, in that kind of situation?
Just food for thought, perhaps?