Hello everyone!
Thanks for jotting your ideas and feedback here, really appreciated.
Version 1.1.8.3 brings a beginning of implementation to this issue (static images). Make sure to regenerate your HTML.
An alt tag will be added and empty by default to every image block.
If the image has a media library alt tag and no alt tag is set in the image block itself, then the image alt tag will be used. The block alt tag takes priority over the media library one.
Unfortunately, Cwicly was adding the alt tag manually when a new image was applied, so we won’t be able to modify those blocks, so you’ll have to remove it manually if you want to use the media library alt tag. Apologies for this!