There’s a difference in distribution freedom though. HyperCard and Flash were conceived as production tools. You could interface with other tools and APIs. For the finished work, you could put it in a box and sell 6 million copies (like Myst), or host a game on your own server (like everything in the Flash golden era).
The Dreams runtime is a console game — a prerequisite investment, and limited audience compared to desktop / web platforms. Hopefully they’ll offer some kind of player-only licensing program for creators eventually?