There are, on rare occasion, questions where a simple, concise answer, with a link, is entirely appropriate. However, these are rarely good questions, and just because a short answer is the appropriate one does not mean it is good content.
I absolutely agree that most copy & paste one-line answers should be downvoted.
I'm not, however, certain that I consider that Bichon Frise answer to be short enough to merit a downvote. This is just my personal preference, but I feel the answer is complete enough that I won't downvote it, yet brief enough that I won't upvote it.
Personally, I think it is sufficient to refrain from upvoting most answers that are particularly brief, but at some point there is a subjective line where these answers become poor enough to merit a downvote.
Answers that are thorough should be our goal. Answers that provide the minimum information necessary to address the question should not be encouraged.
Regardless of how you vote (or abstain from voting), it will be most helpful if you leave a comment suggesting that more details be added to expand the answer. You don't have to mention votes (and doing so may or may not be counter-productive) in the comment; just provide guidance as to what would improve the quality of the answer.