In its early days,
League of Legends was known for its slower, more methodical gameplay, with matches often focusing on strategic farming and careful lane management. However, as the game evolved, Riot Games introduced new champions and continuously refined balance with patches, shifting the dynamics of gameplay. This evolution led to the emergence of faster-paced, more aggressive strategies. Teams and players adapted by adopting high-risk, high-reward tactics, leading to an increase in action and, consequently, higher kill counts. Nowadays, the game is characterized by intense, high-energy matches where spectacularly high kill totals have become a thrilling hallmark of competitive play.
It is interesting to note the records are quite recent and some observers would say they are the result of a "kill inflation" as the game has become more fast-paced. This follows Riot Games plan to continue making the game as fresh and entertaining as possible since its release in 2009. We can still expect kill records to be broken as there will always be newly designed champions with kits that will necessarily surpass elder ones.