The word has lost it's meaning.
Look at the phrase "assault rifle." In truth, this is a sturdy rifle or carbine, FULLY AUTO if originally designed that way, and used by some professional.
I have a prairie dog rifle in my gun room. It has ONE piece that relates to military hardware at all, the hollow, lower receiver; and even THAT is stretching it. It's an AR-15, built as a semi-automatic, and even that lower receiver has a custom trigger for precise shooting. Yet, every idiot, including my friends, who walks into the gun room says, "Nice assault weapon." I quit correcting them.
I own a Strider AR. I cannot tell you what Mick Strider was thinking. Maybe he has friends in the military that needed a good jackknife, and he made them. If so, that's a "tactical knife."
Me? I needed a good jackknife, and I bought a Strider AR. The only blood on it is MINE. It's a jackknife, and it always will be.