The only problem I have with autofill

It says it's to shorten queue times, but how come I queue for 15 minutes and get my lanes and on the 16th minute I get autofilled.

People dodge, dodge, and dodge. I sit there with 16 minutes wasted not even playing my lanes

***NOTE: This is in norms, I want to have fun and play what I want in norms

****NOTE: I'm fine with this happening in ranked