What this means for your engagement

Nothing, unless you want it to. The work you commission is the work you get, on the timescale quoted.

Occasionally an engagement raises a question worth answering properly. If that happens we will ask — in writing, at the outset — whether we may use the findings in anonymized, aggregated form. Your name would never appear, and you would see anything before it was published. If you would rather not, that is completely fine and the work is unaffected.