The telescope has had the mirror deployed for 6 months and so far it has had a single micrometeroid strike that exceeded expectations, and did some minor damage

The telescope has had the mirror deployed for 6 months and so far it has had a single micrometeroid strike that exceeded expectations, and did some minor damage to a single mirror segment. Even if this continues at roughly the same rate, the telescope will continue to function within the initial design specification for at least another year or two, and will be far from "offline within a year". You can't extrapolate anything from a single event. It could have just been bad luck. If another one happens this year - then it's worth some concern.