I understand shinies are supposed to be rare but keeping certain ones locked until a year or more after their debut is not the way to keep interest flowing for a game, also shiny rates except for com day rates are pretty harsh nowadays, even if your doing 30-60 raids for one pokemon you can turn around and find out you waisted all that money because that shiny isn't even available, not to mention its hard to earn decent amounts of pokecoins unless your dropping $10-$15 weekly or even daily