As mentioned earlier I've been playing Pokemon Go with a spoofer for a few weeks now, and I hadn't played since it's release in 2016 before that, but if others have experience with it... are shiny pokemon like absurdly common? I might be speaking from the most convenient place possible as PCsharp let's me play in crowded New York as well as adding a feature that let's you know if nearby Pokemon are shiny without needing to manually check with an encounter, but the numbers I am seeing are still so high. Recently there was some event with a lot of Scythers and I no shit found like 10, to the point I might actually have to release some. During Sun & Moon I Masuda methoded for a shiny Scyther which was female and I wanted a male, so I did it again and got another shiny female and quit... too bad I didn't know it'd be so easy in the future.
It's my conspiracy theory now that I have experence with how you transport to Pokemon Home that it's intentional. The amount of the transporting resource it takes to send a shiny is like 30x that of a regular pokemon, and the microtransaction cost to get more of that resource without waiting days is astronomical.