I disagree and with your conclusion.
We use high trust links all the time and we have seen the power from them every we link from a domain with “high trust links”.
This is also telegraph, ac, nhs, sch, .bbc , guardian and many other more high trust sites you have not mentioned.
All these graphs and talk about numbers and fancy diagrams, at the end of the day the proof is in the pudding.
You get a link from the BBC and you know about! Furthermore, that domain, any links from that also pass a % of this “trust” metric no one ever mentions.
We have domains in our portfolio that have such links pointing to them and out bound links from these domains pass “trust” a google metric nobody knows or talks about. We believe exists. For example see our “low trust tool”
High trust links make a difference. I use this technique and see results every time!
The Link Auditors.