I'm surprised at your height you can even find internal frame packs that fit well.
I didn't - at least in the daypack category - don;t have a need for backpacking ones so didn't look there.
He only said this one doesn't fit, we don't know that he found one that does fit well...
The Osprey Stratos 34 is technically a bit short, but so far it's kinda working. Need to put a bunch more miles on it before I decide if it's a keeper though.