Most of your feedback is customers raising the same issues in different words. Themes does the grouping for you. Sunbeam reads every piece of feedback, puts what means the same thing together, and turns thousands of comments into a short list of named issues, each one backed by the quotes behind it.
Once you have a named list of issues, you can actually work with your feedback. Sort by volume to see what's biggest. Score by impact to see what's costing you. Filter by segment to see what one group is raising. Track any issue over time. Give every team the same view, so everyone argues about the same things.
You don't maintain a taxonomy. You don't tag anything by hand. When customers start talking about something new, a feature you just shipped, a competitor they're comparing you to, a regulation changing, Sunbeam picks it up and names it on its own.