Yes, a point could be made that The Netherlands has gone too far in that process. Part of that is also due to financial difficulty caused by labour shortages, the pandemic, and now also the permanent effects of the pandemic (working from home). So mass transit has basically been set-back for 4 years, which is a big financial blow to any company. That means fewer lines were financially viable due to more limited staffing and budget, and more importantly less transit use.

So cuts have indeed been made. It has become a tool to budget transit rather than to improve the quality of transit. However, if you need to budget transit, IMHO the way they are doing it is still the best way. So focusing more on the corridors are viable, and focus on improving those as much as possible to offer high-quality transit there and trying to be as competitive with the bike and care on that corridor as possible.

Dutch transit companies are indeed very harsh on scrapping service. If the numbers don't meet their criteria, it is usually gone. Also see it in the big cities. But there the impact of such a change is more limited. Then it is more like a 2-minute walk going to a 5-minute walk for example. Instead of some service to no service in rural areas.