I obviously don't know the management side of the argument, but from a player standpoint I do not see any downsides to adding it to survival. Highly doubt anyone would choose to not play just because bedwars (quite possibly the most popular minecraft minigame atm) was added.
Also would open the door to having something like a bedwars tournament hosted as a weekend event, or just tournaments in general.
Also would open the door to having something like a bedwars tournament hosted as a weekend event, or just tournaments in general.