I don't doubt that feeding in a separate enclosure works for you and your snake, but as you yourself have witnessed, sometimes it can be tricky to move a hungry snake without getting bit.

Now if the point of moving to a separate enclosure is to NOT get bit, how does that make any sense that you would put yourself in a situation where the snake will surely bite you?

When I was starting out, I fed in a separate enclosure until I realized that it doesn't make any sense logically. The snake either doesn't care that its being moved, or is very hungry and is likely to bite you on accident. I don't see how either of those situations are positive.

I'm not trying to say what you are doing is wrong, merely that you can save time and effort by just feeding in the home enclosure. It is just easier for everyone.