The script isn't a scraper, it only caches whatever artwork has been scraped by your scraper. If the "wrong" artwork is being cached it's because your scraper has scraped the wrong artwork. Caching is not scraping.
Texture Cache Maintenance Utility: Preload your texture cache for optimal UI performance. Remotely manage media libraries. Purge unused artwork to free up space. Find missing media. Configurable QA check to highlight metadata issues. Aid in diagnosis of library and cache related problems.