I sure would like to read the actual ruling, but from what I see in the article, this applies to pedal assist e-bikes, and wouldn’t apply to e-bikes that have a throttle which is operated by a way other than pedaling (like a thumb or twist throttle). I have to think there’s a maximum speed and/or weight as well, otherwise someone could very easily build a large, heavy, highway-ready “e-bike” that just uses pedaling for the throttle, but is in every other way an electric motorcycle.
Of course EU regulations, contrary to the US, limit pedal-assist bikes to a maximum continuous rated power of no more than 250 W and a speed to 25 km/h before cutting out power, leaving you to rely your legs for more speed.
It is plenty, as long as the torque is sufficient. When mountainbiking I have never felt I would need more power, even on climbs where keeping the front wheel down is tricky. Of course you cannot sustain 25 km/h on steeper hills, but do you even need to?