Are Dittos found in Buried Relic always shiny?

Question

I was playing Rescue Team DX and in 2 days, I found 5 shiny boss dittos.

Is this normal or am I just lucky?

Comments

Not always. The shiny odds are boosted, but unconfirmed

The ditto in question is the “strong foe” of the dungeon. Certain dungeons have different strong foes. Strong foes are the only possible shinies, and they have high shiny odds that are unconfirmed, and they are hard to recruit. I’ll post an answer later with all the possible info, but this is the gist

5 shinies in a row is lucky, though