Yep, the test itself is quite stupid. It is not surprising that they got some ‘correct’ answers from pre-schoolers.
The test is based on excercising a linear correct thinking which might be good for primates, as contrary to less advanced mammals, not to a humans who aren’t dumb enough to skip a size comparison of giraffe, elephant and an average fridge, and also wise enough expect some crocodiles in the river to skip Lion’s conference.
Correct thinking - concrete thinking