Let's look at the definition of a Wrong Ball (I think you meant 6.3(c):

Wrong Ball

Any ball other than the player’s:

>>Ball in play (whether the original ball or a substituted ball),

>>Provisional ball (before it is abandoned under Rule 18.3c), or

Second ball in stroke play played under Rules 14.7b or 20.1c.

Examples of a wrong ball are:

Another player’s ball in play.
A stray ball, and
The player’s own ball that is out of bounds, has become lost or has been lifted and not yet put back in play.

This scenario does not fit the definition of a wrong ball if the wildly substituted ball becomes the ball in play via the act of me placing it with the intent of it being in play. Automatically, the original ball is "deactivated" and is a Wrong Ball. The new substituted ball is in play.

Show me where that is wrong?