I personally prefer that it be left there as then someone else can come along to fix a problem ...

As DrByte stated, add-ons are offered as is ... and sometimes that may be a surprise ...

I prefer to work with a clean test site of the current version ... only takes a minute to make one ... and add the add-on to the clean version and see what works and doesn't ...

This way I am not fighting conflicts of other add-ons ...

It is a good test and practice ... and thanks for pointing out the problem, hopefully someone will address it in the future ...