i fully agree with the suggestion (but not against the queen walk)
i am not really interested in the queen walk issue because it is one of the many strategies of the game. i use 4 healers and 20 giants for many months and attack from 2 points simulteneously: i always get to the storages each time before they get killed (plus some heal and jump spells of course). it seems literally unstoppable in 90% of the attempts. i started using this strategy when traps could kill healers and it was nicer since a trap could pop up and change the whole plan. it is better to return to that former system where an air mine would kill the healer.