Quick off topic note, Luke was ALWAYS meant to have the ST blaster, so the shirt material wasn't to cover that, ANH Han was the figure where the boards chimed in about the error listing it on the site and then getting it included and all.
Ok. My mistake.
I just think it's a stretch to say that because of the shirt, Sideshow failed in their promise to spare no expense. If someone wanted to hold them to that to the letter, we would have had a blastshield helmet, a stormtrooper belt, and a better sculpt (incidentally, I think the proto paint was worse than the production).
I'm completely the opposite. The material on a figure is #1 priority. I rarely display Luke with the blaster, but he always has that shirt on. Its the biggest flaw of the figure by far and very glaring to me.
Likeness is my highest priority. If a figure's face is not immediately and clearly recognizable then my expectations for the rest will be equally compromised. Clothing becomes irrelevant once the figure ceases to be a dead ringer for the character.
Since that level of likeness is not to be expected (though Lando appears to be a new entry into the ranks of Palpatine and Ben Kenobi) the standard I am left to judge these figures by is how well it works as a whole, for what it is. Boushh and Jedi Luke are good examples of that. So are ROTS Skywalker, Kenobi, and Windu. Slightly lesser examples are the ANH heroes, Qui-gon, or ESB Han & Luke. The aliens all escape this standard because they seem to stand fully on their own merits. Even with Maul, the semblence is far enough from human that discrepancies don't register, and I consider all of them up to this point to be spectacular.
But Lando is impressive as hell, and yes, I would be disappointed if his cape didn't end up having the liner details. But that's because everything else is so dead-on. My only complaint is that he's not on the Buck.