Yes, its currently not supported on PLP. You can build it as an extension. If your PLP has only products (no master-variant), you can extend it to include the icon and the add-to-wishlist icon.
If your PLP has master products, you will need to capture the dimensions as part of the products. THe SearchByCrtieria should have dimensions information. You can use that to then find the variant id, to add to wishlist.
Overall it can be PLP module (search results module ) extension to support this feature.
