Generalising from the centre of a city to the whole country is a distortion. Last time i was in the Netherlands, i arrived in Amsterdam, then went out to the countryside, somewhere near Dedemsvaart. I looked at doing the trip by public transport, but it would have taken forever. Instead, we rented a car and drove there, along wide, fast, busy roads. The Netherlands is indeed a heavily motorised country.
Dutch cycling infrastructure is close to ubiquitous, extending practically the length and breadth of the country. The idea that bikes are used only in city centres is another distortion. But of course the bike tends to be used for shorter, local trips.
Your (roughly 130 km) journey would have been less fast had those people making their shorter distance journeys by bike got into their cars instead.
You'll find plenty of people cycling in Dedemsvaart itself though. Nobody is claiming cars don't have their place. It just shouldn't be the default mode - or even worse, the only viable option - for every single trip.
