I have to completely agree with Gazz (he in a serious mood, must have fever or something). Players might think they need to loot 50 corpses to be happy after horde night because they are used to it like they were used to spam-crafting. They will adapt (grudingly and with armed revolt on their minds) and after a short while nobody will miss the A16 days. They might not get 20 t-shirts, but the high-quality AK laser-pointer mod and the caliper will be so much better.
After all, they can still scavenge houses to get their fix of loot boxes to open (I'm a scavenger player too, I do that all the time, there is no loot scarcity)
And yes, you wouldn't even need boss-zombies, just make zombies, ANY zombies only have a low change of dropping a loot bag, at any time. Better zombies should have a higher chance for dropping the bag just so that farming of low-level zombies doesn't get fashionable and players feel they get a better chance for sinking more bullets in a Z.
The net result could be that you get as much stuff as in A16, but don't need to loot **every** **single** zombie.
The problem I see is that the game has not enough high-quality rare items, but that is a general problem of the game. Hopefully the A17 mods can change this a bit.