I will be frank: that product listing does not immediately inspire confidence: typos, images unnecessarily and confusingly mirrored, missing relevant specifications (eg crank length), and a reference to "electronic brakes".
However, with what is available, based upon the previous discussion, this does seem to meet your needs. Poor marketing materials will not invalidate this ebike if it ends up working out for you. I do think you were wise to avoid a non-removable 8 kg (18 lbs) battery, since you were aiming for multiple battery modularity.
I will say that at this price range, and with no UL/cUL markings, I would take reasonable precautions while charging the batteries, such as only charging while someone is awake and nearby. I'm not suggesting a 10 meter exclusion zone or anything alarmist like that, but reports do suggest it's the charging phase where any defects will expose themselves.
With all that said, welcome to the ebike club! You've leveled up, with more places to see and visit, at your own pace and on your own schedule. The world -- or at least, greater Vancouver -- is your oyster. Let us know how things go, both good and bad, about this ebike and your journeys, whether just a work commute or an epic outdoor adventure.