This is fine, but does not cover walled and hedged roads, for instance. They block line of sight unless elements are touching them, in which case such elements can see and be seen by elements on the other side.
Hedges are impassable except at gates.
Elements recoiled into hedges are destroyed. Elements may fire through hedges if adjacent, and may be fired at by elements on the other side, but close combat is not possible through a hedge. There is no cover benefit if fired at through a hedge. Elements may recoil and follow up over walls.