Here's how I, personally, "have a problem" with this. I have an ADR for BOG before opening on one of these days. My plan (which I also did just a few weeks ago in early March when I was there with friends and was scoping out the ride and strategy for my family trip) was to get in as soon as I could (we are early risers), eat my prepaid breakfast at BOG, and wait in line next to 7DMT. One of my boys is not a fan of rollercoasters but I thought he would like this one as it is very smooth and you feel very secure in those seats. I am also planning on getting FP+ for it as I have high hopes he will enjoy it so much he will want to ride it again. When the park opens at 9 am, my family will be in line and will be in the first wave of folks allowed to ride.
With EMM, I can still implement my same strategy, but now I will NOT be in the first wave to get on the ride. I'll have leftover people who are in the queue from EMM. Truly, I'm estimating this to be maybe 500 people. Based on someone else's post earlier, maybe that's a 20-25 minute wait. Not awful for this ride, but NOT what I was planning - certainly not what I thought when I made my ADR months ago. And it sets us back from going through the rest of the park.
So, yes, I'm annoyed. Very annoyed. Will Disney care about how this one family has been affected? Nope. Do YOU care? Nope. But I DO have a problem with this because I planned, according to Disney's rules, and then they went and changed the rules on me. Fortunately, I am still outside of my FP+ window so, theoretically, there's still time to move my plans around (though a PPO ADR at BOG is NOT available on other days during my trip right now). But that's certainly not the case for everyone who's affected by this that are traveling in April and May.
If these really are selling out, my only hope is that they have kept the cap very low. But I highly doubt that - this still needs to be a profitable venture for Disney to do this. They are not offering this out of pure generosity.