Embraer do regional (ie smaller ~75 seat range) aircraft. The 747 etc was amazing, but 20+ years ago airlines considered 60% load factor to be normal. (Load f

Embraer do regional (ie smaller ~75 seat range) aircraft. The 747 etc was amazing, but 20+ years ago airlines considered 60% load factor to be normal. (Load factor is what proportion of the seats are occupied.) Nowadays 85% is what they target. Before virtually everyone could get aisle and window seats - now not so much! The restrooms are not a plane manufacturer thing. The changes happening are Airbus figuring out how to make them smaller. They have to be big enough for a disabled person, but Airbus figured out that you could have two smaller ones next to each that open together to meet the requirements. Galleys and restrooms don't make revenue, so everyone is figuring out how to make them smaller and free up room for more seats. You found one.