Makes sense to me.
There’s not that much green space left in Europe and most countries have a presumption against any development, even a golf course, on what’s left.
But an artificial course on, say, a brownfield/landfill site would be welcomed. The economics add up somewhere like Luxembourg, which has a big potential golfing population within 50 miles.
The high construction cost could be offset by cheap, or even subsidised, land costs.
Also, in much of mainland Europe, it’s too cold to grow grass in winter and too hot in summer without lots of water.
If it was on landfill, the rough shaping could be done by the garbageurs in conjunction with the architect's plans (think unsubtle, but dramatic mounding)
A good artificial course won’t match a good grass course, but it will be better than a mediocre grass one.