The loan period is 7 days only. If you cant pay the loan during that period then its over. No extension will be given and your NFT will be handed to Rollbit and will be listed at the marketplace (this is based on their support).
Yes you are right on the point that only 7 days period is allotted to payback the loan so we can say that it's short term loan given to the NFT holders(check that are eligible for this) and after that you don't have any right to that NFT and it's already in the Rollbit custody but the point is they become owner of it afterwards.
Oh, if it is only 7 day period then it makes no sense at all. Loans are not suppose to be just 7 days, I mean what can you earn with a loan given to you in 7 days? There are literally no ways of making a lot of money in 7 days, only if you are like super super lucky and bull run happens right as soon as you get the money and keeps going up until the very last second. This we all know would be like a miracle and that is not the way to make money at all. Loans should be at the bare minimum be 6 months at top, sure if you want 1 day loan then you can get it, but at the max level it should be minimum of 6 months, probably 1 to 2 years as well.
The amount of 20-25 year loans for mortgages are through the roof (pun intended lol) and people are building wealth with it, don't tell me that you can't just make some money with that type of loan when banks have been giving them out left and right.