I wouldn't put it by my horde base; I do a separate horde and home base, but either way, yes, I actually would take fewer zombies. Now I understand not everyone would feel that way, and it's definitely understandable.
However, I'm sure there are solutions, like having no AI models, similar to how trees are just 3D models with some movement. If I plant trees next to my horde base, do fewer zombies spawn? Limit how many chicken coops can be put in one chunk. I mean, come on, you're the dev team, not me. Someone is smart enough to figure it out.