I took those test questions - and failed dismally!!! I wonder how they determine one's ability to become a controller?
As a hopeful who has spent many an hour researching all of the selection test process, I too have pondered the same question - the answers vary from 'HR know what they are doing and all of the skills you need to be a controller can be found within these tests' to 'there will always be false negatives and false positives regardless of which system you use.'
For me, I'll just need to practice, practice, practice the cubes as that's my biggest shortcoming. I can always hope the cubes will be removed by the time I apply, but I doubt that very much.
I still query the relevance...