The author complains that kids are learning coding tutorials - like angry birds ones on code.org. Having attended my (then 5yo) doing some of these I think the level is about right. Just like we don't force kids to read chapter books without illustrations at that age, 'horses for courses' as they say.<p>The angry birds type tutorials are a bit too closely lead buy they cover basic variable use and loops and such. They also show the JavaScript produced by the blockly frontend.<p>The objections seem a bit harsh given the target age ranges - if they're still using only blockly at 15yo then you would be right to worry IMO.