It wouldn't be so bad, except that Gallifrey has really only worked in one story ("Deadly Assassin"). Everything since then has been togas and techno-shite.
I'd be interested in exploring another side to them. Someone, I forget who (Cartmel?), proposed that it be more like
Gormenghast. Anyone who lives that long is going to have some kind of physical or mental abnormality. Gallifrey should be the most psychedelic planet we've ever seen.
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It's a production joke. Nothing too serious.
Hartnell had a double (the Abbot of Amboise). Troughton had Ramon Salamander. Nyssa met her twin in "Black Orchid", and I'm pretty sure Peri was mistaken for Queen Anne in the audios.