Zz's portal really should be deleted

During laning period , it forces opposite players to stay and clean waves forever. In middle gaming period, opposite team needs to split and clean waves until they destroy all portals. In solo queue, players need to take a long time to finish preparation before coming to group, so this item really does too much for those teams that lost early game. I think this item makes the whole game like hide and seek if the opposite team has >=2 portals, or you have to buy one even if you champion doesn't fit it well.