Oh I completely agree with you here, if someone is looking for a totl all in one / self contained device then the rwak240 is it!
But for me, since I personally don't mind carrying around humongous stacks on the go, I will be pairing the hugo with an external amp (Wagnus Epsilon S), hence why I only care about the DAC section's performance & not the amp section's performance.
There's a different device for different people & different needs.
Yes, this is why i am myself using HUGO+TU-05 ( portable tube amp). A Nice tube colour to add some "body" onto the "purity" of the HUGO sound.