Kills and Volatility
The game feels like it is won by an early kill. Everything feels very snowbally and hurts the integrity of the game. Look at competitive play: someone goes 2/0 and they are considered fed. I used to agree with this, but it's hard to climb when games are determined by First Blood. Volatility of games has never been this high. First Blood is the lowest example giving a 10% chance to win increase. Other objective firsts (Rift Herald, Dragon, First Tower) give a minimum of 16% increase to the teams chance to win.
I think making the canon minion change made this even more volatile. Basically they deny so much extra gold from just having to pressure you into missing the cannon and can let you pick up the regular minion scraps under your tower.
It also feels pretty bad knowing that the game is balanced around the LCS and not 90% of it's player base.
I'm sure I'll receive all the typical comments here: "Never surrender, there's always a chance" "git gud" "blah blah"