I didn't realize that about Ferdinand vs. Coco. I still don't think it's majorly hurt Coco. It's given it a little bit of competiton as it's not the only kids option out there but I don't know that it's significantly impacted it.
It's almost like Disney tries to sabotage or bury certain movies. I don't understand their mindframe for some releases. I guess they assume animated vs. live action can stand on their own separate from each other, but many people just see it all as one big Disney umbrella. They aren't giving some of their movies breathing room.
Like
@Princess Leia said, they had several months with nothing released and then they seem to release one right after the other.
Having seen a bunch of ads for Ferdinand up to it's release, I totally forgot it's been released or that it even came out on the 15th, but that's me. It just hasn't generated any buzz that I've seen, but Coco is talked about.