Just because a fix is easy does not mean it is cheep.So if it doesn't take that much to fix it, then why hasn't Disney already done it? I feel like theres more to this that either you or i will know. Oh and please contact Mr. Johnson in the control tower to confirm your flight to the moon!
All I needed to do to make my last car perfect was replace the engine and transmission. Easy solution, but not so easy on the checking account.
The solution for the yeti is similar. Take out the Yeti and install a new one wit the design flaw fixed. An easy but expensive solution made only more complicated by 2 departments not agreeing on who gets the bill and the fact that 99% of Disney's client base has no idea that anything is wrong.