I think you might underestimate the time it took. Would you only be satisfied if a year's worth of work had been spent? He discussed that he considered a numb

I think you might underestimate the time it took. Would you only be satisfied if a year's worth of work had been spent? He discussed that he considered a number of different things he could have done but since the original plan was not to commercialize the result (but instead just put it out on youtube) there probably was not a lot of budget and time available. No-one's forcing anyone to watch this version.