That's the problem with anecdotal evidence, Jason..too subjective. For every guy you know who didnt have any problem and blew right through deer, some other fella has 15 other fellas who lost a bunch of deer due to no penetration, etc.
I think it comes down to something similar to what was said earlier- you can probably kill a whitetail with a 22 almost every time you shoot one...is it the weapon of choice, though? I don't believe it would be.
If you chase a moose, do you want to do it with a lightweight whitetail setup? I bet not. So then you have to set up your bow differently, learn to shoot it well, go on your trip, come home, set it up for your lightweight setup and relearn shooting it cause deer season is coming. Too much work for me, and probably a few whitetails and moose are glad we'll go through that rigamarole too!!!
On the other hand, what's so bad about shooting THROUGH a bunch of whitetails by 30 feet and then using the same setup to guarantee the moose gets two holes in him as well? Nothing, in my book.