Royal Treatment needs to be banned from standard
Allowing instant speed hexproof alone is gamebreaking. Giving a creature an enchantment that gives it +1/+1 is absolute the wrong choice from a game quality perspective.

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alurenswarm326#36585 commented
The large number of two-mana removal spells printed over the past year or two do a lot to invalidate expensive creatures. One mana protection spells offer counterplay. In some decks, Royal Treatment is stronger than Snakeskin Veil, but in others, Veil seems to be preferred (including at Worlds apparently), particularly due to +1/+1 counter synergies. I happily play Royal Treatment in Standard, alongside a similar white common just printed in Duskmourn, but I don’t think it’s one of the most played cards in Standard.
I suspect you need to understand that even the best Magic players don’t win every game, much less the rest of us; and maybe we need to choose different decks from time to time in constructed formats.