Yes and no.
On one hand, yes, go ride a bike. Go ride a cargo bike. Get outside. Exercise. Have fun. Live your life. It's great!! And if you haven't ridden a cargo bike before and start, or start riding it farther, then odds are your legs will get stronger and add some muscle.
Otoh, hours of cardio are an extremely inefficient way to gain muscle, and especially, to get stronger. The article noted that the specific health benefits were related to leg strength and power. As the article notes, you should aim for 8-12 reps to muscular failure (I would argue that this is on the high end of the rep range) - and a cargo bike ride of only 12 pedals will be... quite short.
And on the other other hand - god, this article reads like uninformed trash as far as its actual lifting advice. Which I suppose is fine for people who are just starting out lifting - just getting started and continuing to show up is the real key... but it reads like a bodybuilding rag from the 90s. No, not all dynamic movements are "plyometric"...
In conclusion, ride your bike to the gym, do a set of 5 heavy deads, go home. Brain accomplished