Personally I don’t care what others are doing 
What I care is that we don’t say lies or inaccurate statements and the way to show that we’re serious and following what we say is by providing proofs.
More specifically, on this point I think we need to discuss it and do several things before we can vote this point:
- Add an Accessiblity Manager role (and elect someone)
- Write down somewhere how we include accessibility in our designs
- Link to our development practices for WCAG
- Link to the accessibility automated tests
- Check if SonarQube has some accessibility rules and if so, link to them and consider enabling them for us