If the Bible says a thing is a blessing and a helpful thing, then it is. If the Bible goes on to warn that one should be careful not to use the thing to the extreme, including addiction, this does not negate the blessedness of the thing. The Bible is simply saying, "Don't turn a good thing into a god thing", to use Mark Driscolls phrase.
To prohibit a blessed thing completely on the grounds that sin is possible is stupid; worse, it's sinful.
"Woe to those who call evil good and good evil,
who put darkness for light and light for darkness,
who put bitter for sweet and sweet for bitter!" (Isaiah 5:20)