I don't know if hamas miscalculated it.I don't why they're taking so long to to attack Rafah. There is no way any country will let Islamic terrorists like hamas get away with it, knowing that they will come back again and try to kill Israelis like October 7. Hamas grossly miscalculated when they attacked Israel and when asked about their civilians deaths, Hamas leaders said that they needed to sacrifice. barf
Counting on ultra left idiots proved to be a success for hamas internationally. And no attack on rafah only confirms it.