[Plugin: Google News Sitemap Generator] Could this sitemap generate memory errors for large blogs?

The standard Google Sitemap Generator for WordPress Plugin has an issue sometimes hitting Server Memory Limits. Could this happen for the news sitemap too or does the fact that it is limited to the last 2 days mean the sitemap should be much smaller and therefore less prone to memory issues?

Here’s details on the regular sitemap generator issue:

http://www.quickonlinetips.com/archives/2009/04/sitemap-generator-wordpress-plugin-internal-server-errors/comment-page-3/#comments

http://www.arnebrachhold.de/2006/04/07/google-sitemaps-faq-sitemap-issues-errors-and-problems/

http://wordpress.org/extend/plugins/google-news-sitemap-generator/