I tend to look for referential indexes; Easy for who? Easy accordining to who? Easy in comparison to what? Easy according to what standards?
My compliments if the test looked easy for you. That may be a statement of your own assessment of your own skill. Try not to project your standards on others, because they have a right to their own too. Especially your Sensei. They have a reason they test and promote as they do, trust them.
BTW, I would not have passed me either.