I tend to agree. A very well timed strike will almost always displace the balance of someone somehow - if only because you zapped the central nervous system and the body decided that it needed to lie down very quickly.
To do "softer" things like throw and lock you need to be able to do those things without thinking about them. So as critters, we're hard-wired to slap, seize, gouge, and hit...the other things we're hardwired to is grab on and shove them down or away into something hard like a tree, rock, or the ground. The training comes in where you slam them into something - but you stay on your feet.
Locks are, for me, the cherry on top of the sundae. Hardest to do, hardest to learn, hardest to train. The only time I've been able to work locks well is when the other person grabs onto me. Then they're much easier. I've seen very nice video of police types being able to put on very good locks on perps..but they usually have a nice nightstick of some kind they use to help along the way.
All of them (strikes/locks/throws) can be "easy" if there is enough training put in so that they become mindless acts.