I understand why you feel like this. For 20 years we've been a downloadable source company and everything has been focused around that.
However, we have to move with the times. As people demand more interactivity and sophistication from apps, we need to use technologies outside of a standard "LAMP" stack offered by most self hosting companies. A small number of customers have the ability to set up a PHP server, a MySQL server, a Node server, Redis, and configure authentication systems including WAF and CDN, most do not and when you rent out that much hardware, the cost per month won't be far from one of our platform costs.
Social media platforms have increased expectation of what a modern web app can do. Leveraging cloud architecture allows us to develop features that can compete on a UI level.
Worth noting that "Sentiment" is only there as we test out the system, that's not final UI. 🤣