What is the ruling on expanding the basins of the jamarat?

Question:
Is what happened this year regarding the expansion of the jamarat basins and the expansion of the channel permissible according to the Shari'ah? And if it is permissible, why was this expansion not done before to relieve the congestion and hardship from the people?

Answer:
My brother, before there was congestion, because the Hajj was a bit different; they are not innovators. Those who performed Hajj with the Prophet (peace and blessings be upon him) stoned the jamarat with one hundred thousand, and how many pilgrims are there today? How many?
Five million, or around that. The time has changed, but the jamarat have not changed, praise be to Allah. The target is the same, but they placed a channel above, from the upper level, to the channel where the jamarat are stoned. Then you go with this channel, and it falls into the basin. They extended these channels to facilitate things for the people, but all the jamarat flow into the basin. This is a form of facilitation; this is a form of facilitation. And the channel is not just this channel; they call it a decorated channel. The jamarat gather in it and are channeled down a slope so that no pebble remains in it; it all flows into the basin. But the questioner did not go after the Hajj to see this project so that he would be convinced.