Originally Posted by
ethernal
Sorry, I'm unsure how changing someone's seat assignment to a seat in the same class is considered a nice gesture. I could at least see the case of, e.g., seats with increased legroom, but otherwise I don't see how a same class cabin move is a nice gesture. Regardless, the right process would be to ask the passenger if that is what they want - not make a change unsolicited.
I would venture to guess that the vast majority of people wouldn't want to be in the last row and would see a seat close to the front as much more desirable. I can totally see GAs seeing a diamond in the last row and thinking that they would prefer to sit further forward (and I suspect the vast majority would prefer to sit further forward. I have no proof of this, but just my suspicion based on experience). Besides this, those seats are blocked for a reason. If somebody needs seats together or whatever, somebody who took one of those seats will probably be the first to be moved.