I'd say the Mono is being portrayed as more of a beast than it deserves to be.
Like all homebuilts, there's a wide variation in empty weights, like 140 lbs.
And there are many different powerplant/prop combinations.. So some perform markedly better.
One thing the Mono is very sensitive to is over-zealous footwork. All that does is to set up a sequence of chasing the previous corrections. The rudder/tailwheel steering is quite direct, so usually inputs should be quite small and at the right time. Not after it's gone off heading by 10 degrees !
Operating off grass is much easier than tarmac, as with any tailwheel a/c.
There are plenty of tailwheel aircraft that can be a handful on the ground if you let them get ahead of you.
If you want to see how not to do it, look at Dragon Lady on Youtube !
