It's unfortunate, but you can use real url routing with SPAs now... that could provide deep linking... can't speak to the original devs.

Went through this recently at work on an SPA app when I started making more pages separately and more atomically routable. It may be an "SPA" but that doesn't preclude proper urls/routes.

Seems like they whipped this together using some no code tool or something just to test the idea.