The 12 teams in the ESL were not there on sporting merit. They were there based on potential financial worth. The ESL had no merit in any form. Permanent teams is completely to different to allowing two teams to enter the Champions League based on achievements over 5 years.
They are technically still offered on sporting merit. But over previous 5 years, not just the previous season. Unlike the ESL, no club will have a given right to be there.
If I've read the rules correctly, I think only 2 teams enter through this route.
The final two places will go to the clubs with the highest club coefficient over the last five years that have not qualified for the Champions League group stage but have qualified either for the Champions League...