It's a good letter and hopefully an effective lesson to a massive organisation that diversity and inclusion is being used as a Trojan horse by some very dodgy people - especially those wishing to target children in relation to sex and sexuality
Nah
People have been alerting everyone to this for years.
All that's happened is that those pointing it our are blocked banned or arrested 
This letter is one big " we are sorry we got caught"
Absolutely no one is backing down. Girl guides , nspcc, body shop, lush etc no one.
And I personally informed girl guides and nspcc of the 80 page investigation slamming ACs understanding of safeguarding.
You would have to be under a rock to not know. If regular every day women with zero access to funds and armed with just a smart phone and a laptop of the kids get off it know about this then a multi million pound international company should.
They would rather brazen it out and hope people forget about it than use their names and funds to launch an investigation into what's happening.