First, the Wednesday home-plate collision in question, which involved Brandon Douglas of Double-A Erie (Tigers) and catcher Brian Jeroloman of Harrisburg (Nationals) ...
Brutal stuff, obviously.
The temptation -- and the players themselves would probably say as much -- is to dismiss this as "part of the game." But it's not, at least in any meaningful historical sense. This is a baseball phenonemon largely native to the last 30 to 40 years or so. So, no, it's not "how the game was meant to be played."
Second, when the catcher plants himself in the base-line and awaits the throw (that may not be the case above -- inconclusive from the given angle -- but it's a common thing), it's plainly against the rules, as I've written before. When that occurs, the plate ump should immediately award home to the runner on the basis of obstruction. When the runner veers from the base-line to "blow up" a catcher who's not blocking the plate, then the runner should be ruled out and ejected from the game.
Again, this nonsense is a modern flourish -- not "old school" in any regard -- and the practice should be marginalized out of the game.
If, from the loving embrace of your sofa, you demand head trauma for purposes of entertainment, then you have other sports you can watch.