People need to stop taking the POR exclusion so personally.
Look at it from a business perspective: Why do hotels offer a discount or promo? To fill rooms. Look at some of the other resorts that are excluded (AOA LM, VGF). They are popular right now due to novelty and limited availability. and let's be honest, right now POR is one of the most popular resorts overall, especially with bigger families. They don't need a promo to fill rooms. They are already filled.
I'm pretty sure Disney execs didn't sit in a room and decide "let's stick it to our customers that have larger families". They looked at bookings and decided which resorts to include and which weeks to exclude to meet their financial goals.