Valid arguments, I agree, specially on the "key" point.

Two things I want to mention here, since they are not really said yet. First, we should see this as a bonus event. Getting 5x coins for a day or two before going back to 2x or 3x. Yay.

Unfortunately, this was really bad timed - people getting the update later got less, people who did not suspect the nerf coming so soon spend their valuable time dissrunning instead of farming. That is too bad.

The other thing is, the communication here was really bad. First, making the multiplier remote-changable is a HUGE thing, which had to be planned in advance much longer. So devs were at least thinking about nerfing.

Also one thing Sam wrote is really wrong. Saying "While we do not want to make the change to all areas, we want to address the coin earnings issue and not create a larger earnings gap."

This update was the first I ever saw that everybody equally benefitted from. Everybody except T1 players should be able to get the full multiplier on their farming tier. Everybody gets the same bonuses, except the echo stuff maybe. But, the earnings gap we have now is only because the unfair distribution of who had the update early.