I think Roger Bently made a small housing to go over his external adjuster so it was not visible / could not be adjusted without removing it for the same reasons you state. It was a simple cover. Didnt look out of place.
Maybe thats your simple solution if it really concerns you ?
MAD for it.
Steyr LG 110 Gary Cane, Leupold 2.5-8x36 TMR
Member of the UYK, UYB, UYC, UYH & UYE club.
I would like to agree with you....but then we would both be wrong !!