The "right" amount of power from an ebike is an arbitrary, subjective, personal matter: for those of us who ride SLs, that's the "right" amount of power.
It's really that simple.
Is it a compromise? Yes. But everything - FF, acoustic, in-between - is.
Put it this way: I also own a FF Cube and a fast, nimble, flickable acoustic bike. And I've not ridden either - not once - since I got my SL in August.
The SL allows me to do things I can't really do on my acoustic; and it does so in a way which is far more "acoustic-like" than my FF could ever hope to be. The extra effort involved cf. a FF bike is part of the experience, incidentally.
As compromises go then, it's a pretty good one.
Now, I'm more of a trail/singletrack rider than an enduro-type rider: the SL gets me out further, and lets me have far more fun, than either of my other bikes can get close to doing - each can do part of the equation, but only the SL does both.