So to take an extreme theortical single indivdual case, where the pre 74 owners land was not used in any way upto the point where they lost control of it and the emotional connection to it was negliable vs current usrs that for the last 35 years have invested in it emotionaly and fincially to a great degree, in a case such as this I think it would be right to conclude that the harm of compelling the current users to move is greater than that of compelling the pre 74 owner to accept compensation in either money or acceptable alternative land.
Is that single individual you? Like Piratis said if it would be right to conclude what you conclude then the ECHR will agree with you. If it was my land that you build on and used for 35 years profiting and becoming rich while I was living in some shitty refugee housing then I would sue your ass off and demand rent for those 35 years!