Agreed although the current government flaunts its commitment to defy tradition and the law of needed. They signal they are above the law which for citizens should be extremely scary. There is no recourse.
And in the zone having common transportation infrastructure is critical. Not sure how this is rocket science. This is how policy works. Yiu dont stop a trail, a route or a road at a border or the agreement is useless.
Actually Romania is investing in cycling infrastructure, there is some pressure to adopt minimum standards across the Schengen. Not everyone can be the Netherlands overnight, but i definitely salutes the progress.