I don't know why people be acting surprised because games are snowbally

Litteraly all the changes that were made to the game and that weren't champion related were aimed to make the game more snowbally.

Minions gaining bonus damage/damage reduction based on how many towers and level your team has on the enemy team

Gold per second increased

Thunderlord, Fervor, Deathfire touch, Storm raider and Colossus all being keystones that encourage nothing but offensive plays. No stats for late game fantasy, no farming/gold reward, etc.

AP being lowered, but scalings being added all accross the board (Luden, Protobelt, GLP, Thunderlord, Deathfire touch) to encourage early/mid game trades instead of building tons of AP to reach a late game fantasy

ADCs dealing more damage mid game with 3 items than they'd deal late game when everyone is full build

Divers being more popular than tanks to engage because they can do the same job but deal ridiculous damage WHILE engaging/peeling

Towers being nerfed over and over and over and over all of this while INCREASING the rewards they give, making siege champions and junglers who can help destroy a tower easily much more effective (Notice how all of the champions mentioned above have some kind of attack speed steroid, auto attack reset or sheen afinity).

Towers dealing %health damage to minions, dealing a mere 5% health to super minions making it almost impossible to come back once an inhibitor is destroyed unless the enemy team makes MULTIPLE MAJOR MISTAKES.

Laser towers being completely removed from the game

Jungle being changed towards making ganks more effective and farming almost impossible since camps respawn so slowly and take so much time/health to clear +plants giving some extra advantages to the winning team since they will have access to more vision/mobility/sustain the more they can push toward the enemy base.

Plants benefiting ganking jungles by giving them escapes that would have been impossible before (blast cone) and litteraly giving them a way to see WICH BUSH IS WARDED BEFORE THEY GANK (blue plant)

It's not surprising that games are one sided and the victory is decided as soon as one team has 5 kills+ a tower over the enemy team. And riot isn't even TRYING to fix it they litteraly keep adding changes that make snowball more effective since late season 5.