I agree. However:
Arguing now, unfortunately, also helps to create a class of people that have an emotional investment in — an ego-identification with, if you will — the perception that they did not make a mistake in their initial negative reaction to Perl 6. Often, when someone jumps to a conlusion, he or she with be extremely reluctant to let go of that opinion even in the face of strong evidence to the contrary.
The same is true in reverse, as well: many people, jumping to hasty
positive conclusions, are just as likely to be reluctant to admit they were too optimistic in their initial assessments, later on.
That's not to say that I think any discussion of the matter should be discouraged, however. It's a mixed bag, this question of benefit vs. detriment in terms of public opinion, but discussion is more honest, more open, and more likely to lead to positive change.