Why it worked
The video leverages the 'satisfying' trend by focusing on the tactile, sensory appeal of the product, which is highly shareable and visually engaging.
Product placement
(a) Needoh (specifically the NeeDoh Nice Cube): the product is operated by being squeezed and stretched repeatedly, demonstrating its tactile, squishy properties. Removing it would remove the entire point of the video. (b) Dr Pepper: the logo appears on the packaging box. Removing it would not change the video's focus on the squishy toy.