Jumping in here kind of late, but you can change more than one cell and trigger your code.
If you select more than one cell type a number into the first cell and type control + enter all the cells will change and you will get a match for your range changing if one of the cells was in your range. If you select multiple cells and select delete you have changed all of those cells and again if one of them was in your range you will get a positive with intersect.
What is done a lot of times is if you are interested in only one cell being changed you start the code with something like the following. You can also write it to deal with more than one cell being changed if you don't want to allow that to happen.
I'm not sure what you are after and this may be a non issue but I thought I would bring it up.
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