[Avodah] More - What is special about the blood of a redeemed sacrifice?

[Meir Rabi]

Furthermore, Rashi suggests that since as we are permitted once in EY, to
eat regular meat [Bassar Chulin] we would have thought that we are also
permitted to slaughter and eat Kodashim in our own home.
Why is this so?
And is this connected to our earlier query, the consideration that we may be
permitted to eat blood of a redeemed blemished sacrifice?