The Grapple Dog Demo has now been removed from steam. You can see the reasoning for it in this twitter thread: https://twitter.com/JoGribbin/status/1485570215383605251

What does that mean for this page? Unless there happens to be in game leaderboards in the full game, I'd like to convert this to the full game page once it comes out. Old times (so just 1-3 times since nobody else ended up running the demo) will be ported, assuming 1-3 is exactly the same from a speedrunning perspective, otherwise it will have a defunct, historical record alongside the full game version of the level. Demo% and the other two levels will likely be thrown out entirely for simplicity's sake.

Also, for those who bothered to read this, I'll give you a tip-off that I received in an email a while back. (I hope this isn't confidential???) There seem to be plans for another speedrun contest to be held at time of full release. :)