Why remove STEM content from learning challenges?

If artificial intelligence is the problem, there are many ways to solve the problem, for example:

Exercises can be requested in video format where each participant explains step-by-step how to solve it.

I think the solution was not to eliminate it, I am in steemit since September 2017 and I have always uploaded STEM content on my blog, so I think the solution is in the way to review the content, and also place the tasks with exercises that can be solved by the user in a video, and with this solve the problem of artificial intelligence.

I hope you consider the case.

I also find it strange that they have eliminated the physical education learning challenge, at least it would have been good to postulate a learning challenge associated with sport, physical activity and / or recreation.