Thank you very much for your words, very appreciated.
Yes, currently the only one option for product images is integrated PhotoSwipe lightbox that is really useful option as for us. In addition to this such type of product images presentation works best on mobile devices because you are able to zoom images just in the way you do this in standard mobile gallery photos.
Anyway users also have the ability to use third-party plugin to enable zoom on our theme https://wordpress.org/plugins/yith-woocommerce-zoom-magnifier/
Basel is fully compatible with this plugin and maybe we will add deep integration for this module in the future. You can try it out and contact us in case you will have any difficulties or issues regarding this plugin usage.