It looks like OGS gave AGA handicap for 22 ranks difference in game A (6 stones and 0.5 komi) and AGA handicap for 25 ranks difference in game B (7 stones and 2.5 reverse komi). AGA 9x9 handicap is already the toughest out there for white, but OGS 9x9 handicap seems to be even tougher (but this might be a bug?).
With Cambridge 9x9 handicap, game A would be about 3 stones and 5 reverse komi, while game B would be about 3 stones and 1.5 reverse komi.
With Baarle 9x9 handicap, both games would be 4 stones without komi.
My feeling is that AGA 9x9 handicap is too easy for black. If OGS really uses that (or an even more generous handicap system) for 9x9 ratings, I expect that the OGS 9x9 ratings of weaker players will become inflated relative to their OGS 19x19 ratings.