I understand your PoV and it's a difficult topic, but if people want to power down, they'll do it regardless of 4 weeks, 13 weeks or 2 years. The only thing this is actually doing is pushing the possible downside of selling further into the future.
For me, the bigger problem are inflation rewards being paid out faster. However, with 13 weeks, the chance is far lower for someone to test out curation rewards and voting in general here on Steem in comparison to 4 weeks.
And at this point, we shouldn't play defence with Steem. SMTs and Communitis will change Steem completely and this will be a perfect time for people to come back/for new people to test out Steem.
You know, at least we're able to have a civil discussion over it. It's something that the Steem community does incredibly well. Total breath of fresh air compared to other social media platforms.
I do want to know more about your concern with inflation rewards. Can you elaborate on that? What problems have you identified?