This isn't about fusion as an energy source. The thing runs at room temp. That means any fusion reaction is quenched immediately. At most, this device might be good for a neutron source for diagnostic testing purposes. That's it. It's a small niche market item. Right now, the beaker's output is 3x the background radiation around you now.
Oh, I agree with that, but that doesn't matter. If fusion is in the conversation, you can rest assured it will be in the research grant applications and those will be sent to the folks who dole out fusion money. That makes it a threat to the fusion empires.