I move all my snakes to seperate feeding containers on paper towel for meals. It's a good idea for a number of reasons:
1. They're not eating on their substrate, so you reduce the risk of impaction or injury from injested substrate.
2. They don't associate your hand entering the tank with food and are less likely to strike you when you reach in to pick them up.
3. Some snakes like privacy/smaller spaces to eat in, so you can put them in a smaller container and cover it - they'll feel secure.
4. If you're housing more than one snake together, they're less likely to cannibalize if they eat seperately and are left for half an hour to an hour. The food smell wears off and they loose their eating impulse. If you feed them together, they tend to go for the same piece of food, even if you've offered more than one.
5. If you have a snake that regularly defecates when he eats or if you're feeding live, the cleanup is quicker/tidier - just wad up the paper towel and pitch it - no hunting for mouse poo or scooping right after mealtime.