Well if the strike is equal to my 3 year old granddaughter hitting the bag then it would not qualify.
There is space between each brick. The first brick breaks the second and so forth. The added weight helps after you get so far. Physics my friends. If there was no space it would take a blow from Thor's hammer to break that much solid concrete.
Where is the power and snap? Would these "martial" arts side kicks hurt somebody? By the looks of the video the answer is no.
They need to add to the rules that the kick must have enough power to actually hurt sombody. In my school those would not have enough power to get a point in Olympic TKD.
There are some people that will say you broke only 1 concrete block. That first block broke the second one. The second one broke the third. To shut these people up all you have to do is do your 50 block break again but this time do not have any space between the blocks. When you do that they can not say anything about the laws of physics applying and some such nonsense as that. Good job by the way.