Hi Pete
Right, it's not tricky at all. Honestly speaking, I don't remember anyone ever saying on Veeam forums that it was tricky. But, exactly as you've said:
1) YMMV
2) Statistics. Without people contacting support team (which is available for free edtition as well, btw) Veeam would have almost no idea of what adjustment should be introduced in future releases, and what are typical setups and sizes.
Anyway, I'm glad that you've nailed it!
Thanks