Sorry to make the cake bigger again, but: NO. In small or medium sized rooms one subwoofer might be OK. If your other speakers are not full range speakers, keep in mind that the subwoofer isn’t playing only the LFE channel, but plays all the bass of the 5, 7 or 0 speakers. All that bass is redirected to this one subwoofer. So that helicopter, truck engine, a Learjet or whatever, that isn”t necessary a low frequency effect, that’s just bass. And that bass is redirected to one single subwoofer. When you have more than one , you have more dynamic headroom, the distortion gets lower, you have more amplifiers. It can really cover or carry everything that is thrown at the subwoofer. The other thing is also that you excite the bass better in the room.
One subwoofer rumbling around in the corner is one thing. If you have two subwoofers, the bass wave and the way the bass radiates in the room is excited more evenly. This means a gain in the quality of the bass, just by what happens with bass waves in the room. Yes, more than one subwoofer is the way to go!