Passing the onion test is better than not passing it, but I think the relevant standard is having intent to inform. There’s a difference between trying to share relevant information in the hopes that the audience will integrate it with their own knowledge and use it to make better decisions, and selectively sharing information in the hopes of persuading the audience to make the decision you want them to make.
An evidence-filtering clever arguer can pass the onion test (by not omitting information that the audience would be surprised to learn was omitted) and pass the test of not technically lying (by not making false statements) while failing to make a rational argument in which the stated reasons are the real reasons.
Passing the onion test is better than not passing it, but I think the relevant standard is having intent to inform. There’s a difference between trying to share relevant information in the hopes that the audience will integrate it with their own knowledge and use it to make better decisions, and selectively sharing information in the hopes of persuading the audience to make the decision you want them to make.
An evidence-filtering clever arguer can pass the onion test (by not omitting information that the audience would be surprised to learn was omitted) and pass the test of not technically lying (by not making false statements) while failing to make a rational argument in which the stated reasons are the real reasons.