Ok Fine - can say "as he approached the kicker turning his head " (pedantic,but if it makes Harry happy I'm ok with that wording .) The result was he collected the kicker's leg as he didn't see where he or the Kicker were going(wasn't looking) . Sure- not forceful but it was enough to turn him in the air and land awkwardly,nearly falling and possibly injuring his ankle. It looked like a close thing in the replay (Not much said about that ) it could easily have ended badly. His duty of care was to keep Kicker in full site while "approaching ".giving him at least a chance of avoiding collision, however "Gentle" it may have been. Honestly The ref has enough to do without going beyond :-
*Connected Kicker after looking away. . Turning him in mid air,so he fell awkwardly . Just goes to show if you get on front foot immediately like Harry and Protest with self righteous indignation , most people will go along with that. I think Harry learned his craft well from his predecessor .