I spoke with them this morning and they said they are not aware of widespread failures, but failures have occurred (obviously). He said with those failures there does not seem to be any correlation for direct thread vs braked, serial number batches, etc. If that changes and it becomes widespread or correlated to SN batches they will issue a recall.
From what they have seen, most of the failures have stemmed from misuse (mag dumps, getting it too hot without allowing it to cool between groups, etc.)
I asked if there is anything additional that can/should be done to inspect it and it sounds like basically just keep an eye on the exterior of the welds for any anomalies/separation etc.
I'm going to continue to shoot it in the same manner I have been. 3-5 rounds at a time, letting it cool to the touch.