I find that it works great to jack the wheel I need to take off, lay down behind or in front of the car and put tire under car,then pick up tire slightly and slam it into the back of the seized wheel. Usually knocks it right off in 1-3 swings.
I find your description troublesome, so I hope I am misunderstanding. You are recommending to jack the car up on the included jack and then lay down underneath it while bashing on the wheel you wish you remove?
I would not recommend this method as it is dangerous and could leave you dead instead of with just a flat tire if you destabilize the car and it falls on you. What I do is:
1. Jack the car up near the tire you wish to remove.
2. Remove all bolts except one (leave that last bolt on there just enough to keep the wheel from flying off when it becomes unstuck).
3. Standing in front of the stuck wheel, stand the tire up vertically where it would roll straight into the wheel you wish to remove.
4. Pick up the spare tire and swing it to hit (tire against tire) the left and/or right sides of the tire (one side per swing) attached to the rim you wish to remove.
5. Change to spare as usual.
Obviously, swing too hard and your car might take a tumble. But if you're stranded, you might save a sore toe/heel from kicking and kicking comes with the same risk.