No do_action / apply_filters ..

Hi
Is there any reason for why there is a total lack of do_action / apply_filters usage? I mean none of plugins can interact with your code in any way, unless hack in, which obliviously is not a solution.
For example, my code need access to the html data before it write on cache file. At the moment there’s no way for that.

For example, can you add a filter on /inc/cache.php on line 549 right above this code:

if($this->cacheFilePath){
    $this->createFolder($this->cacheFilePath, $content);
}

Something like this:

$content = apply_filters('wpfc/cache/callback/content_before_save', $content);

Thanks