I have a generally favourable view of the trust, and I've got no doubt that a lot of the criticism of the club is entirely warranted.
However, writing an open letter to someone's boss complaining about a lack of response is probably not the best way of cultivating an ongoing relationship.
if someone did that to my boss I would understandably be pissed off.
I guess that it probably came out of frustration at a lack of engagement, but there are probably better ways of going about things.

I'm not really a fan of open letters in general tbh, they always come across as a bit self-important.