This is ubelievably dumb. Israel is not even a democracy. Yes, they may have some democratic laws, but they are also 70+ years under the state of emergency. There isn't free press. Israelis are getting locked up for protesting for peace, for refusing to fight in a apartheid war, even for liking facebook comments supporting Palestine.
Aplying collective punishment / collective responsibility under such circumstances (as generally under any circumstances) not only doesn't support the plight of palestinian refugees, it goes against it!
I understand their (Maledives) motivation, but this is not the way. You can't punish all Palestinians for the crimes of the few, nor can you punish all Israelies for the crimes of the many.