Look at the large picture, autovivification is harm. Language should only do what programmer means to do.

I personally believe that you may be surprised to learn that as far as I'm concerned, for one, with autovivification Perl does exactly what I mean to do. Such seems to be the case with most other Perl programmers: that it isn't with you doesn't constitute an argument of universal validity. My own opinion differs with the general consensus on some issue every now and again...