Not silly. Smart.
Best way to end a set = score a try
Next best way = get the ball back
Next best way = tackle them 1m out in the corner
BUT doing any of those things generally brings some risk with it. In general you can't score or get repeat sets, or tackle them 1m out regularly without kicking, or stringing together a few passes. Doing those things close to the line quite often result in a mistake (handover at the 10) or the other team either getting a 7 tackle set, or running 90+ metres to score.
So what's the next best way to end a set? Get tackled 1m out in the corner.
It's tackle 0 rather than tackle 1, but they are 99m from the stripe, you get some time to set your defensive line, and you can get up quick and bash them on plays 1 and 2 because you know which way they are running. Better yet, this play beings with it zero risk of a mistake, 7 tackle set, or opposition runaway.
It's probably not in the spirit of the game, and it would look ridiculous - but if some coach decided that he wanted to end his sets by having his second rower play the ball half a metre out in the corner with no dummy half, let the opposition dive on it, and then have two players lay on him - that would actually give you a better result. Tackle 1, 1m out, in the corner, off a slow play the ball. Now
that would be a silly tactic, albeit an effective one. Can you imagine us fans losing our **** if the Sharks did that 5 times in a game - deliberately?
@Chad send this to Fitz and tell him "Burgo said you are welcome"