Far more (& better) reasons to feed "inside" than out.Prevent your snake from ingesting substrate by feeding from tongs, or on a "plate" of some kind (if drop fed).
Feeding "outside" is asking to get bit (before, when hungry, or after, when snakes are still in "feed mode"), especially for those with very little snake experience. You'll notice those here that make exceptions are NOT newbies to snakes.It's essential to read your snake's body language correctly, because feeding bites can be dangerous with larger snakes.
And handling a nervous snake right after they've eaten is also risking a regurgitation, which is nasty, inconvenient & wasteful at BEST, or a deadly health risk to the snake, at the worst.
BTW, all my snakes are fed in their homes.