I dont understand the multiple cursors, is this better than search and replace? I am guessing you are replacing it to the same thing at every cursor, but I guess the value is then that the from could be different at the cursors?
For more complicated things or bigger changes you would go with regex search & replace or sed/awk/grep but for small one-shot things it is way quicker to just click 5 times and do whatever you need to.