Practice tool down at random times.

So it seems to me that RIto decides to deactivate practice tool whenever they need the server space, my only question is, why even give us the practice tool if you're not gonna let it serve the intended function. I use it a lot to warm up, if I can't I don't play. If you're just going to deactivate it whenever you feel like it, without any sort of warning, why even have it.