Why the Telegraph?
Dunno but I might speculate this.
There are limited options for whistleblowing on this. You can't go to the Guardian. It's not a BBC story. Not even newsnight really as its all a he said - they / them said rather than hard on concrete facts.
That leaves you with the Mail, Telegraph and Times.
Again for the same reason as news night, maybe the Times isn't the way to go.
The Mail has obvious draw backs. And the Telegraph 'at least is a broadsheet.'
Then my thought is the original whistleblower knew a lot of details for an internal report so toxic there was no safe space for it. That leaves my guess being that not all the trustees are happy about withholding the report. Certainly they weren't happy about the staff reaction to Green going. But they can't leak report either.
Theres obviously discussion going on within the group and internal infighting which isn't healthy in its own right. And it looks like at least one trustee has probably been party to that. I'm not convinced they are a whistle blow themselves but there's certainly unease.
Both whistleblower 1 and 2 are in the more moderate group and are starting to see the batshittery around them and know they are in deep shit.
Whats the best way to protect yourself in this situation with looming threat of investigations and criminal charges?
Whistleblow.
If the telegraph is willing to give you a voice and your options are limited, you'd take it even if it's not ideal.
Its about self preservation and a dawning realisation that not all is well. So the Telegraph does make sense if you are desperately worried about what's happening.
All the she / her and they / them gossip is toxic in its own right and there's clearly factions within Mermaids trying to compete for its future in an increasingly public way.