It all makes a lot of sense to me and I utterly "get it" - my golden gate is cut from this cloth! However, where we diverge in taste is that I also like to be able to hear a Decca recording for example and then a modern DG and them sounding so very different in that one can easily distinguish the 2. Colour in this latter context means to me that the sonic signature imparted is so heavy so as to diminish the difference.
I totally agree with you that recordings made in different halls by various engineers should not sound the same. But I can hear very easily the differences between my Decca sxl lp's recorded in Kingsway hall and my EMI asd recordings dating from the same period.