Prior to R80, it was possible to create a new policy without setting a policy installation target. That was great for staging new policies before the gateway was setup. In R80/R80.10, this is no longer possible.
Anything imported from R77.x was allowed to have no install targets...
When will the feature come back? It has been extremely useful. Right now, we have build a dummy gateway, which consumes a license in 3rd party tools and also causes alerts from our policy install automation due to the install of this policy failing.