Yes, I think its important, that also bigger companies use WB; as a model role. WB is well established on private or smaller business sites, but not so for bigger companies.
Its not the problem with the number of pages. orsy.at has ca. 70 pages; I have some much bigger sites (At the moment I am working on a site with over 200 pages - at the start)
Even the main Würth site - wuerth.de - doesnt have very much pages, if you exclude the masses of product pages - which come out of a product database. You could handle this with WB also. But I guess, they wont do
Why we choosed WB for orsy.at:
The site is merged from some other domains - wuerth.at, wuerth.de and some more. Of course one can take the pages as they are, but how put them together? There is lot of double or unfitting content, other contact persons, phone...
An employee has to check everything and directly change it - easy and without training, by the way.
I also administer the site wuerth.at, and I know well, how difficult this is for people without training. WB is much easier, the Würth people had no problems at all; some short phone calls instead of a thick manual.