Good joke, how was that supposed to be "no problem"? - if I could only "enter" my property by parachute for six months, even I, usually a rather peaceful person, would only briefly consider whether a preliminary injunction would suffice or if it might be better to settle it with the help ;-) of Serbian persuasion skills.
It was not a problem at all to get that approved.
The costs would have been noticeably five-figure, if it was even feasible at all. Somehow you have to get access to the gap.
Residents could enter, of course, but not drive through. Or only "with luck" on weekends could they directly drive to the properties.
That was assessed as reasonable, weighed against the builder's economic interest. In practice, without closure, people wouldn't have been able to reliably drive to (and especially leave) their properties anyway. If a 40-ton truck is unloading in front of your driveway, in case of doubt the heavier one wins ;-)
The resentment was rather projected onto the property seller, who had been sitting on the (ugly) wasteland for decades. Because rationally considered, the residents were obviously disturbed by the construction site and closure, but nobody had a better idea either.