Disagree. B737 (classic) pitch on a 3deg ILS about 2.5 up so AoA 5.5deg. A319 pitch about 2deg so AoA about 5deg.
B737 flare to about 4-5 deg up, airbus to about 3. Can't see a great difference. If anything, airbus A319/320 has a lower pitch. Have flown both in the last 3 months.
Anyway, so what? the two aircraft wing sections aren't the same, flap design is different, etc etc, so why would one expect them to have similar alpha?
Can't see your point, I'm afraid.