The new Champ Select doesn't make any sense

"To address position shortages, we’re adding an autofill mode that can trigger when queue times are too long. If players enter queue with excessive estimated wait times, the matchmaker will potentially assign them a role other than the two they selected."

I simply can't understand the concept of this new Champion Select.

In the old Champ Select you could get your main role like 80% of the time anyway.

Now we have long Queue times and can't even secure 2 Roles anymore.

There is no reason why the Old Champ Select from S5 shouldn't simply be brought back.