The language isn’t perfect but I love working with it, these 8.1 and 8.2 improvements have really made it sweet.
My biggest gripe at the moment is the (very old) behavior of e.g. preg_match() and sort(). You’ve got a small handful of these common functions that operate on their input by reference/in place which is gross. A new version of these would be welcome.
Care to explain what you mean it's broken if disabled? That it is disabled (noop in runtime) so you're missing it? AFAIK that's the production setting. You should be able to enable it in build/test/ci/development, just how you want it.
But that might just be me and/or my particular use case.