I can sympathize with the frustration here, but what you've described isn't a reason to halt development of the bridge; it's a reason to push forward with development of the Ranger guild. They deserve something way better and more substantial than a bit of a shortcut through this one particular area.

In addition, we don't really know yet whether the new bridge will actually be faster than the rope arrangement that's there now. It may be that there will end up being a "wait for this thing to open" stage similar to the drawbridge into Theren Keep or the Gear Gate into Raven's Point, and the point of the upgrade is only to remove the "one person at a time" restriction. That would still be a massive, much-needed improvement, and would refrain from stomping on the Ranger guild's remaining toe.

Thanks,
-Biomancer Karthor