My autosandbox works so well it wont release my flash drive
(bug that is known about and being looked into - unrelated here)
Seriously though, the autosandbox is more a precautionary thing, i.e. it can often flag something that based on whatever tests it does, but it doesn't necessary mean it is a definitely bad program/whatever.
More like it is saying that it could be bad, and better safe than sorry.
I have LOADS of apps that could cause a sandbox alert

EDIT: and for the original theme of the topic, my view on so called "reviews" in general is here:
http://forum.avast.com/index.php?topic=74116.msg614688#msg614688