Wrong, pessimist are always disappointed. That is why they are a pessimist. They look for the worst in everything. And that is not healthy for the mind. They ismply can't handle failure.
Optimist on the other hand have a healthy mind as they look at the world. Then when disappointment comes along, they handle it and move on.
Now this does not apply to everyone and everything of course, but probably to most. Just as well, there are many that are in between, they can be a little of both.
What the main thing is, how does one handle failure. So some fans whine, some fans are ready for the next season and what it could be.
Thomas Edison's quote, “I have not failed. I've just found 10,000 ways that won't work,” is a perfect reminder that failure is not the end. It is just the beginning of a journey toward success.
This is where the 2023 Dallas Cowboys are, the next journey to success.