URF, Why does it have to disappear

I can probably speak for a lot of people who have played this game mode and say why do they do it for a short amount of time and get rid of it.

understanding its possibly and promotional edge they are trying to do but i have a feeling that the game would get a lot more revenue and a bigger social foot print if it has more gaming styles/options.

completely different Games but take Counter Strike Global Offensive. This game has a multitude of styles such as, death match, arms race, demolition, casual, competitive. 5 different options compared to the League of Legends 3-4 option picks. now realistically only two of the most commonly played which are 5v5 and 3v3. not many people play Bots unless testing things out.

i would think it would better help the game if the previously released modes would be released for good to allow the players to have more freedom and options.