Worth mentioning the bike has rear suspension, separating it from most bikes in this price class and style.
The bike has a cadence sensor. The article seems to suggest a torque sensor.
The only way 30ah is going to get you 200km with a 1000W motor is if you pedal the first 155km! :)
"Ah" gives no indication as to the capacity of the battery. That would instead be provided by "Wh". This is because ebikes commonly have 3 different voltages, 36v, 48v, and 52v.