This is how I see it too.
McVay likely told him he was losing his starting job or even benched, Akers wasn't pleased, no doubt saying he's doing everything he can.
Sean told him to live with it or go home. Akers team carefully crafted the "This isn't the best place for me to continue my career" statement. Not specifically demanding a trade, but sure implying it.
Team couldn't find a taker and everyone realized this was a bad look for both sides. Hugs and kisses all around until the off-season.