I'm going to respectfully disagree with Paul here and say "Yes" in this instance (I think).
Tags are there to help Googlers find the question, so the question could be rephrased as "Would adding powershell help someone find the question that they want to find".
I think it could, even though it wouldn't have helped the OP — who presumably had no idea that Powershell was the way to go. That's because others with a similar question might well have an inkling that powershell might be involved in the answer and search for something like "powershell bcp errors".
I'm making the following assumptions, and if any of them aren't valid, then I take it all back and agree with Paul that the answer is "no":
It is reasonable to think someone with the same question might have an inkling there is a Powershell way to do it.
The Powershell way is the overwhelmingly obvious way an expert would approach the problem (this might be difficult to guage when you've just posted an answer).