'Big' transformation per both European Cup competitions

Yesterday the European football organization accepted measures to change rules for both European Cup (league) tournaments. With this new system we are going to encounter first from 2018/19 season. Important things in all this revamp process are the following:
- This new (and unnecessary) remodeling is made up on coefficients from 2016/17 season.
- Before qualifying stages, in both events are introduced preliminary round.
- For the 'strongest' tournament, 26 clubs will enter directly into the group stage. Out of that number, 6 are going to come from the qualifying part: 4 from the Champion and 2 from the league path. In the second competition 17 teams will have a direct access to the group phase.
- One of the 'big' news is that no matter in what qualifying stage they lost in the Champions league, teams will have another chance to qualify for the Europa league. In short: losing club from Champions league will play again (qualifiers) in the Europa league. 
- At both tournaments there will be Champion and league route. But, what is more confusing is why do we need Champion (or league) route for the Europa league. To what cause do we actually need both paths in qualifiers for this competition?
- From the group stage and onwards, we will no longer have 3 fixed times to start the games (19.00, 20.45 and 21.05 CET). However, that is going to be reduced to only 2. Thus, from September our new time habit for matches are going to be 18.55 and 21.00 CET for both competitions.

In the end all unanswered questions (if any) are going to be clear from the end of June.