I'm not sure about Svalbard, I was reading about it last night and the suggestion was that if you are a taller person the angle of tent inner would easily touch your head when you are lying down? I prefer the MSR shape and design, similar to my Marmot where the designers have tried to keep almost straight walls and maximum height space all along the length of the tent lying down space.
I now have a footprint for my Marmot but originally I used a couple of pre-measured strings with small loops at each end to fit the end of the poles which then kept my tent sprung loaded and upright when I needed to fit the outer tent first (in rain) and then fit the inner afterward. This facility also allows me if I want to, (I don't!) to use my tent just like a sleeping/day area and not have to bother with taking the inner tent with me. I might have done this if I could have purchased an outer tent made of waterproof and thinner material at the same time but unfortunately, it doesn't exist.
Upon reflection, I wasted my money with the footprint, its thin material so I still take another groundsheet with me because I just don't have the confidence in it. It never has but I've always thought that if it's placed on the ground as my one and only groundsheet it could easily tear or puncture. My other reason, of course, is that I also like the area between the outer and inner tent to be covered by a ground sheet and the foot print does not do this at all.