Fault: Updating products with the Product CSV Import Suite does not update the post_modified field
When manually updating a product or using the standard woocommerce import to Update a product the post_modified field is updated to the current Date/Time
The Product CSV Import Suite does not.
This is critical for updating xml sitemaps and detrimental to google's crawl of a website.
Updated products may not be re-crawled and re-crawling unedited products will waste a site's crawl allowance.
(There are other search engines but you know...)