Is that your only measure of success? Someone's always got to finish towards the bottom of the table.
Maybe those clubs there this year feel they're in a better overall place than they would have been without DR.
Maybe they think that they will be more sustainable in the long term as a result of DR. They must have their reasons, as it is optional.
It's also new - so no doubt several clubs are still finding out how it works out.
Only measure of success ? Well, there are the financial implications too but, ultimately, yes - the game's about success on the field. And it seems to me that there's a good correlation between performance and the use of DR. The more you use it, the lower you tend to be in the table, the lower your attendances.
Sure - pick out a few exceptions but the facts are plain.