I for one am thankful for it, it allowed me to get 40 extra threads, and as a result I am not rank 5 battle armor, which easily raised my power more than the 25 ninja tools would have.

Now could it have been better/more 'fair' obviously yes, but they didn't have to do it, ergo it could have EASILY been way worse/not there at all. Even without the rank up, I still would have preferred the thread for the armor, which would be roughly a full month of clearing SA, and honestly you didn't have to spend it on threads, that 1500 coupons can go ANYWHERE, I know a friend who did something similar to me to raise their battle power, but they did it with the cave/'new-ish' rune system, they also had a decent power level boost from it, compared to the little they would have gotten from the 25 ninja tools.

Obviously not everyone will spend the coupons on the same thing, but I for one prefer the coupons over the ninja tools, especially considering how much those coupons translated into medium threads, not to mention the added threads I got from saving up coupons in the first place. (That is what truly allowed me to rank up with my battle armor.)