It's not ideal, but I'm not quite as worried about that as you might be. There are several potential causes of packet loss in a network, and increasing buffer sizes is only likely to have a minor and temporary effect on one of them.

Meanwhile, increased deployment of ECN would permit adding AQM as a means to decrease packet loss.

Random packet loss due to poor quality lines, and also due to dumb policers and overloaded core routers, is probably what's intended here.

- Jonathan Morton