>>2832335Tunnel tents are fairly common in Norway, for being easier to pitch in wind, and typically having bigger vestibules to store gear out of the rain, or so you can do your cooking out of the weather. If the weather is fine you can usually open up the shorter end to have a nice covered outside area.
Not going to go deeper into the pros and cons of them compared to other types of tents, but it's a proven and well-functioning type of tent, otherwise they wouldn't still be making them.
I will say that most people buy very overbuilt tents for the camping they do. Likely it started with a good intention about going out in the autumn or winter before people realised that there aren't very many public holidays in that part of the year, and so the tent doesn't get used too often by your average Joe Blow. I don't imagine that's a problem exclusive to Europeans.
That the tent manufacturers pay heed to the feedback the power users who actually use their tents in foul weather is something I can only see as positive.
Don't mean to be fueling the shit-flinging that's going on, just trying to elucidate why someone might want a tunnel tent.
For the record I'm very happy with my American dome tent, and I don't see myself replacing that anytime soon, since I do most of my camping in the 3 seasons.