Yeah sure
Everyone knows zoo animals are the best English teachers...
Not the point. The idea is to build English vocabulary by exposure, so that vocabulary can be used for further development of further English skills.
Everybody thinks they are an expert on education because everybody has been to school. Those of us who are experts because of years of experience and study should just shut up.
A bunch of ignorant English parents bitch because their little darlings had to do schoolwork in class rather than have fun at school, and people leap out to their outrage bandwagon. Read the comments from the parents and that really seems to be what it is about - too many over indulgent parents don’t seem to understand that school is about learning, and any ‘fun’ activities should be to enhance educational purposes.