I agree there is a complexity cost for bundlers. Whether to pay it is an equation that roughly aligns with how robust and interactive your client offering needs to be. Applications probably, websites probably not.
We're a web application and even with those, I'm not sure the bundling is worth it. Customers in some regions complain about the high payload, we made sure the chunks are split properly but with continuous deployment, there's a lot of cache invalidation anyways.
