Problem is, sometimes it's the only effective treatment for a condition that is impossible to live with.
I agree with you regarding the risk with steroids. However, it is usually possible to manage the situation (albeit with a tanker truck of insulin), so I don't think rejecting steroids out-of-hand is wise.
Perhaps this is a situation where a temporary course of metformin for a T1 in combination with the steroids makes sense? Something worth discussing with one's endo. I know that, as a T2 taking metformin, while it doesn't alleviate the issues with steroids and BG, it does help not-insignificantly.