Mini-WCOOP main event hand

[nlfreddie]

This hand was played yesterday very early on in the mini WCOOP $50 main event.
http://www.boomplayer.com/poker-hands/Boom/20834938_5D40511766

In game, I was not liking the flop and was tempted to fold, but convinced myself he can still have AA/AK. On the river I decided to blocker bet and fold to an all in,  hoping to minimise losses against better and get a sigh call from AK which may check back river.  However with hindsight and discussing with a friend, given his sizing pre and raise size on the flop against this many players, I am not convinced he has AA/AK all that often and will have KK a very high percentage of the time.  Any feedback on the hand is greatly welcomed!

[MC]

Fold flop and be a hero?

Looks good to me tbh. Could perhaps blocker bet less and achieve same goal.

[pleno1]

river is way too thin, would happily c/f, rest seems good.