You are not crazy.
I have played six new BB's and two new AA's in the last two years (not counting any piano the dealer claim to be unprepared), all the BB's could give me louder bass than the AA's.
I will also share this: I consider it a typical M&H characteristic to have a very strong middle range, and the two ends of the keyboard, the high treble and the very low bass, would sound comparatively weaker.
If you want a 7' piano with a relatively stronger bass (when compared to the same piano's mid-range), I'd say Steinway B or Shigeru SK-6 (you can find both within walking distance from Faust Harrison), or perhaps even a pre-Gibson Baldwin SF-10 (if you can find one, qualified pre-Gibson merely because I've never played one made after Gibson took over) or an August Förster 7' (though August Förster won't give you as many decibels of sound, just a bass that's relatively stronger when compared to its mid-range). Schimmel 7' is another possibility. Excepting the Förster 7', I've compared the rest
HERE.
Just to be clear, I make no statement about which is "better" nor whether "stronger bass" is "better" -- it's all a matter of personal taste and perception.