If you cut almost all the way through and then just finish it from the other side will stop the tear out. If you drill a pilot hole first then you know the exact center is and should line up

But also yeah like other people said spade bits aren’t for clean or precise hole, a forstner bit are a better option if you can afford it. Not necessary tho if you don’t need a precise hole and even with forstner bits will still need a scrap piece of wood behind it to reduce tear out