...Remote controls were frowned upon...
I remember when (and it's not that long ago - about 15 years) the idea of a remote controlled amp was frowned upon. The electronics for the RCU would (apparently) impact upon the audio quality.
Yet now, when reading reviews, I see that an amp WITHOUT a remote control is frowned upon.
How times change!
I use an amp without a remote control. I'm very happy with my trusty old NAD 302.