Makes business sense if you want to fill in developers down time - instead of waiting for CR or QA feedback pick up small bug.
Working on two or more big features at the same time is not possible. But throwing in some pebbles and dev can take on it.
The business sense! Would someone please think of the business!
I've yet to find a business that really, truly knows what it wants. Whatever is "good for the business case" today could change overnight after the President reads some cockamamie article in Harvard Business Review, and again in two weeks after the CEO spends a weekend in Jackson Hole.
I do however think that there are quite a few bugs that might be triaged as "easy" but if worked on would reveal much more serious problems. Which is why some random selection of "easy" issues should make it to work queues.