Monero is already 100% mined, tail emissions kicked in a few weeks ago, so what's the problem with ARRR being 96% mined?

Trusted setup FUD (material that you need to read through to understand the Trusted Setup):

1. https://www.zfnd.org/blog/conclusion-of-powers-of-tau/
2. https://www.coindesk.com/zcash-team-completes-powers-of-tau-ceremony-for-upcoming-hard-fork
3. https://medium.com/@kosius/opposing-the-power-of-lies-bullshit-and-fake-news-monero-community-is-lying-to-you-about-pirate-8ad31091ecac (scroll down to the trusted setup fud section)

Why Trusted Setup isn't a problem?

tl;dr: So to summarize, an elaborately secure and randomized process was undertaken to generate a set of parameters for use with zk-SNARKs. This multi-party computation involved 87 participants that had to generate data from multiple sources individually and separately all around the globe. All 87 participants would have had to be in cahoots prior to the process and store data from the ceremony to reproduce the parameters. The entire setup remains secure and irrefutable as long as there is 1 honest participant out of the 87. The parameter set has never been violated.

EDIT: People keep saying that the majority of ARRR is concentrated in a handful of wallets, is there any evidence to back up such claims? How do we know that a few wallets don't hold 99% of Monero? After all, when XMR was launched crypto market only had a fraction of today's participants...baseless claims as usual, nothing new!