Considering the recently released ACF v5.6.0 has fully adopted Select2 v4 for example, I hope I'm wrong but I wouldn't be all that surprised if this SelectWoo fork does not always play nice with the official Select2 library in ACF and other plugins. However, Woocommerce will likely also be the 800 pound gorilla in the room when conflicts arise with other most plugins so it will get it's way. Yeah for WP Select2 fragmentation too!