Only Rogues should be able to Hide as a bonus action to begin with, same as with Disengage. Everyone else are meant to have to use a full action on those things. Together with Expertise not being in the game and Sneak Attack being a declared ability rather than automatic, the Rogues really are hobbled.
That aside, the simplest fix is probably for the game to treat the thing indicating our last known position as a homing beacon for nearby enemies, including that they might throw Alchemist Fire and such items up there for safety.
