Having topside control with nades + heavy is still never going to be as strong as just possessing Longshot on those maps. The only other thing usually on the map to contest it is nades and other common pickups which don’t amount to much. They don’t have to consistently make plays to hold their lead, they can kinda passively sit on it with a tri/mulch and long in their possession. It also really hurts comeback potential for the other team because of how long they can potentially hold advantage just by having free reign over both for the price of one. I don’t really like any current or pass maps (Mercy, Avalanche, Reclaimed etc) with heavies and long present at the same time because it limits all the avenues (usually from three to one) you can use approach a match. Having topside control with a heavy w/o Longshot when long is present on the map is never as strong as just possessing Longshot on the map. If your team has Longshot you basically have control of the heavy too which is why I see them more as a win harder weapons. Having them present with Longshot really trivializes their use.

Right, the maps that have heavies are designed with a ton of open space.

Gears of war mulcher