Video earns attention where stills get scrolled past: reels, stories, product page loops and ads. Most brands have far more photos than footage, so animating the photos they already own is the quickest way to put motion on every product.
The hard part is keeping the product still while everything else moves. Weak results warp a logo mid-turn, change a print as the fabric moves or give a hand an extra finger. A usable clip keeps the product exactly as photographed from first frame to last. See shoppable video for where these clips often end up.
