"The end of the script" is just part of the truth. It actually is "The end of a scope":

$ perl -MO=Deparse -e'print $a'
print $a;
-e syntax OK
$ perl -MO=Deparse -e'{print $a}'
{
    print $a;
}
-e syntax OK
$ perl -MO=Deparse -e'{print $a}print $a'
{
    print $a;
}
print $a;
-e syntax OK
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