It is. It's sort of a wallowing game, but I replayed it, and finally beat it, after my recent divorce and it really hit me.
The trouble is, I found the gameplay difficult. I had to lean on walkthroughs a lot.
Some games are hard and punishing. Celeste is hard and forgiving, and I love it. Braid is a puzzle game, so you can get stuck for ages with no clue what you're even doing wrong, and the forgiveness is worthless then. At least with Celeste I know which way I'm headed - Usually up.