I've had a few that would crush and then tap out, haven't had to do many. But some had big puffy and swollen rubbers, not like in the video, and really, any excuse to burn stuff....was getting powdercoated, different techniques for different results. And many mechanics have an old press out the back, it's all labour times, if anything you can do that takes a bit of stuffing around then it's of benefit, then some things are just easy not to bother if they have to do it anyway. Still doesn't answer why we are discussing tubular control arms or part numbers. The removal cost is the same if you are reusing even some of the parts, less than complete replacements. Perhaps you feel yours need new bushes and just looking for simple upgrades while at it. Some kits also come with a new cross arm shaft, or offset. May save a few dollars in time removing original for reuse to cover replacement, but not much. And while that is all apart you can look at any spindle work, spring replacement, balljoint etc anything you wouldn't normally have access to.
I did mine in one go, or rather just supplied it. But I did a complete spring, shock, spindle, front end replacement, all new, painted, powdercoated, all they had to do was remove and bolt up new straight away, assembly work only. Same with rear when did a diff swap, said come back anytime as I'd done most the work. Hope he's still in business. Was 10 years ago and he said he'd pass car with stock seatbelts...and it hasn't been together since.