I suppose it really depends on what your definition of "reliable enough" is. I've not used apple music, but as a consumer I don't remember the last time I was impacted in any significant way by a YouTube issue. If we have a couple minutes downtime a year from those services, like we seem to right now, I don't really see it as a problem.
There are services where I don't want them going down ever of course. But those are more critical infrastructure than something like Apple Music or YouTube.
