Mistakes via text/iMessage may be something in the past if Apple adopts a newly-published patent application, which the system informs the other person on the receiving end of the line when autocorrect has kicked in.

The image above it the image of the patent which is simple. It highlights words within a message which have been changed and corrected by the OS. This would fix Siri's dictation within the Messages app. Recipients would be able to see that words were changed, but they would not be able to see the original.
Apple credits Christopher J. Hynes with the invention of U.S. Patent Application No. 14/815,910.
An entered character string, which is part of a draft electronic message, is received. The draft electronic message is modified by replacing the entered character string with a replacement character string. The modified electronic message is sent, and a transcript comprising the modified electronic message is displayed. The replacement character string is visually distinguished within the transcript from one or more other character strings in the transcript.
Message