I'd say this largely depends on what your screen time limits are, and what else the kid could be doing while you're otherwise occupied.
Personally, I think the advice for kids and screen time is well-intentioned but misleading. The real problem behind the solution of limiting screen time is to make sure the kids are getting enough of the other things they need, like exercise and interpersonal contact. This is because excessive screen time crowds out these other things, that are very important. In reality, the purpose is not limiting screen time, it's protecting time for these other things.
So, as long as the kid is still getting enough face time and fresh air... what's the harm?
There are a lot of studies saying television in particular harms a developing mind's attention span, but you sure couldn't prove it in my house.
