Solrock and Lunatone not even being available in games called Sun and Moon. That's just strange.
Also, the majority of Ice type shinies. There's no logical reason that Furfrou can turn from white to black and ice types that are light light light blue/white hardly change at all.
I know, right. Why WOULDN'T you add the goddamn og sun and moon Pokemon to Sun and Moon
About the Ice types; for some like Glaceon, the lighter shade actually works well for me. Let's test your argument
* Ice type shinies that don't change much: Dewgong, Articuno, Smoochum, Regice, Glaceon, Froslass, Vanillish, Vanilluxe, Beartic, Avalugg
* Ice type shinies that may or may not change much: Jynx, Glalie, Snover, Abomasnow, Rotom, Cubchoo, Cryogonal, Kyurem, Bergmite, Crabominable
* Ice type shinies that change much: Cloyster, Lapras, Sneasel, Piloswine, Delibird, Snorunt, Spheal, Sealo, Walrein, Weavile, Vanillite
* Ice type shinies with WTF colorations: Swinub, Mamoswine, Amaura, Aurorus
As mentioned, it grinds my gears that there were like three Ice type families in the original Hoenn games that could get. One of which was a legendary, the other is impossible to get if the internal battery runs out