Unacceptable compromises will vary from person to person and are many times subject to budgets and personal preferences. Remote volume control is but one compromise, and I would find it very hard to say that it is an unacceptable compromise anymore than I would say that an automatic transmission in a car is an unacceptable compromise. Almost all of us make compromises, we don't all use 4 box amplifier systems, 2 boxes for each channel, separating the amplifier section from the power supply. Some here use one box stereo amps or even integrated amplifiers.....gasp!! Some don't have dedicated lines, or upgraded outlets, power cords, cables, room treatments, tweaks, etc., etc..
The point is, we all make compromises, and what is unacceptable to one may not be unacceptable to others. I for one, have no qualms with a remote volume control. I have heard preamps sound very good or very bad with or without a remote volume control. I wouldn't judge a preamp's performance on a remote volume control any more than I would judge a automobile's performance on a automatic transmission, or whether it had Wi-Fi capabilities or not, though I am sure that others would.
The point is, we all make compromises, and what is unacceptable to one may not be unacceptable to others. I for one, have no qualms with a remote volume control. I have heard preamps sound very good or very bad with or without a remote volume control. I wouldn't judge a preamp's performance on a remote volume control any more than I would judge a automobile's performance on a automatic transmission, or whether it had Wi-Fi capabilities or not, though I am sure that others would.