Hi Andre!
I think the cards are stacked against projects of this sort. There's nothing fundamentally wrong with this one, but historically hybrid-air/land vehicle projects have just not done well. There's been many projects over the years to mate aircraft with a means to travel on land and none have er, taken off.
Some, like the Ford Pinto/Cessna airframe mating ended after tragic crashes. Most died after the initial excitement played out. Too, the media tend to play up such efforts as the Next Big Thing or the fruit of crackpots, which is not always fair.
I think the core problem is most multi-tools are not "best of both" but instead involve compromises. A jack of all trades is sometimes master of none, and that -- or more importantly, the perception of it -- can be hard to overcome when funding production and making sales.
In this case, the ultralight nature of both air transport (paragliding 'chute and fan) and ground transport (a small-wheel Folder) make for the fewest compromises of any such mating I've seen. It also overcomes the hurdle (in most markets, anyway) of needing an instrument-rated pilot and many people can already ride a bike.
However, this aims squarely at a niche market and dual-use capability within that market is smaller yet. Even with angel funding (which did not come through), it would take a lot of sales to overcome production and setup costs. I could see this working better as a licensing option for homebuilders, but that's an even smaller Venn intersection. If they standardize on a third-party bicycle and it goes out of production, even that effort would flop.
I wish them the best.
Dan.