No. When you are living in an age where things are dark and depressing people want light and happy. That's not unrealistic and it's an absurd mischaracterization to describe it as "lost its balls." This is a thread about a show that deals with sensitive and timely topics, not the least of which is gender change at birth, terrorism, and single parenthood. Not sure what is light and fluffy about that.
As many would state there is plenty of examples of both, and we don't need dour and depressed to be realistic. There's a balance to be struck.