Yeah mate, we have all seen dumb things done on the flight deck. The smart ones learn from it & pass the lesson on to others in an attempt to avoid a repeat. The dumb ones wonder what the hell happened.
The 737 accident you are referring to is the Helios one, not Turkish Airlines.
And if you take a look at the photos in the report you will see that there was significant tactile difference between the two switches in question. Similar to the difference between the flap & gear handles. It would seem however, that there are differences in how various airlines position theses panels in the pedestal. Perhaps there is room for improvement there.
Accuracy is important in this business, hence the comments in my other post.