If your target userbase has a stable, reasonably good internet connection, bundle size doesn't matter. Perhaps it's a dirty secret of front end development these days, but in many use cases, it's a micro-optimization. Now if you're selling goods on Amazon, and billions of page hits and 50ms slower page load time means X% fewer goods sold, you've made a case: one developer spending time on performance optimization is saving your business millions. Most engineers aren't working at that scale.