Teleport needs the on my way ping like reksai's ult and TF ult
people should really ping before they tp but when they are tping they need to worry about tp getting canceled or plan out what they need to do after the tp over there and this is why TP is one of the reason why it is not popular because when they tp people don't noticed them and they die because they probably didn't know someone was tping and they all decided to leave. and that's just one of the rare occasions when people put good places to ward i mean sure they should have done that to reksai ult and tf ult but riot put it in there so i just thought why not do that for teleport