It is hard to imagine how anyone could get themselves into trouble, without trying, but the Plus Six will bite, hard, from 2000 rpm, which is all too easily found.
The Plus Four, when it arrives, will have a similar performance characteristic, just less of it.
Interesting Peter - I feel sure that's the main issue.
Some here will know I had a nasty accident in my boat a few years ago.... the accident was caused by my inexperience at the helm of an extremely powerful boat - entirely my fault. The throttle went from 'peaceful' to 'nuclear Armageddon' in about 3 inches of travel. I hadn't had a boat previously and basically bought the equivalent of a Lamborghini as my first entree into boating. What could possibly go wrong?! Thankfully it was only me that was injured. I sold the boat.
With cars I gradually moved up from a a lowly 3 series to a Ford GT - so I knew to be gentle after years of slowly increasing performance.
If a new buyer purchases any high performance car, it is hoped they will have had something quick previously and know that throttle response is instant.
As you say, the Aero 8's are pussycats that only growl when poked hard.