Right now CLB will gets 1st overall pick and the bubble teams will pick 13-18th. That would remain the same in the proposed system.
The major difference is tanking is not rewarded.
The relevance of the remaining games of the season for non-playoff teams is to win to earn the highest draft pick.
Meanwhile, the teams that will have one or two games following elimination means the teams are still in the playoff race with 80 or 81 games already played. Teams in this position want to win. The one or two games to play are still relevant to win.