I now looked a bit into it, thanks for the link. I think it would make a big difference if that was a credible threat by the parliament, or if it was some random grandstanding by a politician. Given that the idea was not discussed again (all references to the issue are to the same resolution, it seems, AFAICT), it is quite likely that (a) the idea was not serious, and (b) it gave the Russian government an excuse. If it's being used as an excuse then there's no point in taking it as a serious threat to Russian national security the way some people do. The Russian government is very fond of portraying itself as a victim of the West, so some skepticism is warranted.

"...it is quite likely that (a) the idea was not serious, and (b) it gave the Russian government an excuse..."

It looks like you are the one looking for excuse. Following your logic Russia should really wait until threats become very serious then be hit in the face and only then react? I think you're asking a for bit too much Kumbaya.