And why would your position be the most rational position?
A meh position isn't by default the most rational. A huge change in how the API perform will break the experience for a big parcel of power users, power users are usually what whole platforms are built on top of. Twitter's usage is powered by the minority of a few power users who actually post something interesting in the platform, the same is true for Reddit.
You being a consumer satisfied with a subpar experience is not the rational position, it's exactly the "meh" position you mention so it doesn't really lend to much discussion. You won't be that affected, so you probably wouldn't be that affected if Reddit completely disappeared.
Calling people being affected by some massive change to their experience "histrionic" is both being condescending as well as completely not understanding how much it can affect others...
Yes, it's a minority portion of users, but an important minority who engage with Reddit in a very different way than you do :)
I don't believe we can expect the side of "meh" to get much oxygen in any discussion. How could that be? "I don't care about this thing", "me either", "me either".
There's nothing to be said, hence no oxygen for it at all.
The vast majority in any issue don't care about it at all, even important humanity changing stuff like climate change. There's no intellectual value in the "meh" position, it's just apathy... If you can make apathy interesting that might be a million dollar idea.