No, the risk is not exactly the same. If it is given an NR designation the likelihood of it being banned before the next election is MUCH lower. Not zero, but MUCH lower.
If it is given a prohibited FRT then the manufacturer will be forced to stop selling it or lose their license, and police will start arresting people caught with them. Even IF you manage to convince a judge it is NOT a prohibited firearm (good luck with that, the crown will call the Firearms Lab as their expert witness) you'll still pay thousands of dollars, if not 10s of thousands, fighting it.
And if legislation was the only way to ban guns, how did the May 2020 OiC happen? The firearms act specifically gives the Govt the power to ban basically whatever they want via OiC. And what about the handgun freeze? That was done via changing regulations, which DOES NOT require legislation to do.