Not a single person will sign up for 1Password because of this park, and they know that. It's not marketing.
Someone with decision making power at 1Password loves this park (or this area) and is using the money they've collected via 1Password to keep it alive and going.
This is wonderful and I love it. It reminds me of how my (venture backed tech) company sponsors the Barnesville Potato Days every year in Minnesota. Not because we think we'll get a sign up, but because one of our employees loved it and talked about it all the time and when they needed money one year we were happy to part with it.
EDIT: Yup, they have an office near there and the founder is from the area: https://dteare.medium.com/14-years-of-growth-the-1password-s...