Everything you're quoting is from one aggrieved person, who clearly felt slighted, and who left out a whole lot of context in their own post. The article above is a lot more reasoned, less emotional, and seems completely reasonable to me. Ruby Central clearly has issues with both internal and external communication. And the above article isn't an official statement either; it's just one person, not involve in the decision, offering another perspective.
Between the initial removal of access, then giving it back after explaining it was a mistake; the people involved started a conversation about governance to clarify/fix things.
The conversation terminated because the majority of those people then had their access revoked again.
When weighing the facts here; which group or claimant has the most evidence for their claims?
The technical folks with lots of commits over many years, or the treasurer of an organisation who says the impetus for this was a "funding deadline" so all access had to be seized?
I think this person has good cause for being very upset at the lack of communication and the sudden removal of them from the organization. They were a maintainer of RubyGems for a decade.
Right now the board is acting indistinguishably from Andrew Lee during the Freenode collapse, and, like, everyone else who ever did a hostile takeover of an open source project ever. Supporters of the board are acting indistinguishably from supporters of Andrew Lee during the Freenode collapse.
Less emotional? It comes from someone who has no personal stake in the outcome, and was in the loop for the decision making. Versus someone who was personally slighted and was not properly communicated with about such a big change.
A maintainer of RubyGems was forcibly removed from the RubyGems GitHub org — which was renamed to Ruby Central — along with every other maintainer. Then access was restored, then revoked again. There was no explanation, no communication, and no understandable reasoning for this.
This wildly transcends "issues with both internal and external communication" or "we're just a bunch of makers who can't be expected to be good at organization or communication" (to highly paraphrase TFA). This is an absolutely disastrous breach of the community's trust.