While this particular scenario is quite rare (this is the first time I've been personally affected since starting my membership in 2013), I understand the parent commenter's sentiment. It was a little jarring to realize that all of my library's (and basically any on-demand) music was completely unavailable and at the mercy of this issue being resolved.
Again, a temporary issue and one that happens quite infrequently, but if you already may have conflicting opinions on whether it's better to own or rent your music, this is certainly a valid point.
edit: mobile typos