How is it bloat if 160MB of JavaScript will never be in the production version of the app? I mean, the Basecamp team just published Hey.com with less the 50KB

How is it bloat if 160MB of JavaScript will never be in the production version of the app? I mean, the Basecamp team just published Hey.com with less the 50KB of JavaScript and their dev build of Rails for that project must've exceeded 160MB in `node_modules`.