They had bad eyesight and were unable to see .They did not view the painting close enough .They wanted to criticize the painting .They were not a fan of the artist in general .
What may be the reason for their confusion about the artwork ?
Diagonally ! With no uniform direction whatsoever ! It looked like someone had taken a giant hammer and SMASHED the coastline into a hundred fragments .... Then , lol . I realized the blue stuff was n't water . Those were trees .