wouldn't bad publicity be bad for their publishing business?
Business? What business? I never got anybody to 'donate' for the mags. In the US the mag pub business works as follows:
1) Talk given detailing how much we should donate for literature items
2) We order, then pick up literate items
3) We 'voluntarily donate' to cover the 'costs of printing'
4) We then try to get the householder to take the literature (they don't) and the donate to the org (they won't)
Public negative view of the WTBTS won't hurt them at all - it's the publishers funding the org, not the public.