I get the impression some folks think Flash is still a viable product and will be around for a long time. The reality is driven home even more by Chromium's announcement yesterday:
HTML5 by Default
...this change disables Adobe Flash Player unless there’s a user indication that they want Flash content on specific sites, and eventually all websites will require the user’s permission to run Flash.
HTML5 By Default will be enabled for 1% of users of Chrome 55 Stable in the next few days. The feature is also enabled for 50% of Chrome 56 beta users. With Chrome 56 stable in February, we plan to enable it for all users.
Starting in January users will be prompted to run Flash on a site-by-site basis for sites that they have never visited before.
As sites transition from Flash to HTML5, this change will no longer affect them and the entire web will become faster, more secure and power-efficient.