Hi Laura,
Excellent question.
It would be worthy to understand the purpose of both the report and variables reporting to it and what allocation it used.
Please refer to the https://microsite.omniture.com/t2/help/en_US/reference/index.html#Site_Sections_Report
"Shows the areas of your site that are accessed most by your visitors. Site Sections can include groups of products, similar to categories, which you define. "
This report references data directly from the s.channel variable implemented on your website.
All conversion events in the Site Sections Report use last allocation. You will see conversion divided across pages that do not contain success events within your implementation. This is different than the Pages Report, which uses linear allocation.
Hope this solves your query. Please mark it solved if your query is resolved.
Thanks and regards
Akhil