"Pretty much unload and push" - yes, I'd agree this is the bulk of what flow does, but like Pallet puller says, most of us are cross-trained in other areas. Plus, I'd venture to say that those of us on flow who know what we're doing push faster and more accurately because we're task-centered.
One of the reasons I didn't want to stick with beauty when it went e2e was because the beauty TMs did such a crappy job pushing that I spent way more time correcting their mistakes than I should have. Yeah, it looked great because it was faced nicely - but oh look, here's a $20.99 salon shampoo in a $7.99 spot. Or the larger bottles where the smaller ones go. And bonus stuff at the back with new, non-bonus stuff in front because it's easier. When I found it once or twice, yeah, mistakes happen, fix it, move on. But I found stuff like that all. the. time.
And don't get me started on how they did with back stocking. But I guess they can sell!