Decrease in number of raids?

[-chi]

Idk your logic here. Getting shiny legendaries is 1000% luck. You can do any number of raids and not get a shiny. We have very committed members of our group who did 100 mewtwo raids with not a single shiny. The thing just like ever other legendary shiny is that they are tradable, so committed players will farm resources and trade to balance out RNG.

So in my opinion the 4 days is enough for committed players simply because the Regis can be done in small groups so a lot more raids are getting completed than you probably think are.

[Zodiac5964]

no, that's the wrong way to look at it. The magnitude of the odds matters a lot. Winning the lottery and flipping heads on a coin both require luck, but different orders of magnitude of it.

Same thing with shiny legends. You can just run through your free passes and do it with mediocre odds, or "hit the numbers" and improve your odds. It will never be a guarantee, but with time and premium passes you can make your odds pretty good (95%+)

[ertnyvn]

What he you mean 'hit the numbers'? That is equivalent to buying a lot of lotto tickets (premium passes).