the article speaks about letting little kids be messy and creative, but I believe that this can extend to adults.
I would add that a convincing article should not be the basis for discarding one particular pactice or another
neither in praise of creativity/messiness
nor in praise of scientific/academic rigor
But would encourage you to look at WHY you are being either messy or neat.
Being orderly for the sake of obligation, might not be a good reason.
Being messy out of laziness might not be a good reason either.
But, order and logic have a proper place along side the messily random creativity that exists in art (and many fields that would require some level of creativity)