Yea, I'm not sure how many scripts really use this, so I'm not sure what this will affect. But I remember they always dragged their feet on coming out with a new ZendGuard for new versions of PHP. Did they have to release one for each new PHP 5 release? (5.0, 5.1, 5.2, etc) or was it just for PHP 5? But the new PHP version would be released and 2 years later Zend would finally release Zendguard loaders for it.
So them officially dropping support for PHP 7+ is really just a formality.