Yes, it prevents the AWS case where you take a GPL product, put it behind an API gateway, and suddenly you’re under no obligation to share your changes even though they’re still sharing the product. This product in particular would excel as SaaS, and Outerbase already sells one of those — they’re not going to give you their product, white-label! You’d have to also share your mods, or link to the original.
You can still do the above, and even charge for it! You’re just in the “hosted software” business, not the embrace-extend-extinguish business.