[YeGoblynQueenne]

>> A global pandemic in which more people than ever before are applying for unemployment is a situation that COBOL systems were never designed to handle, because a global catastrophe on this scale was never supposed to happen. And yet, even in the midst of this crisis, COBOL systems didn’t actually break down. Although New Jersey’s governor issued his desperate plea for COBOL programmers, later investigations revealed that it was the website through which people filed claims, written in the comparatively much newer programming language Java, that was responsible for the errors, breakdowns, and slowdowns. The backend system that processed those claims—the one written in COBOL—hadn’t been to blame at all.

One can bet good money on the expectation that the mainframes will be the last component of a system to crash and burn. Though to be fair that's not to do with COBOL, per se, it's just that mainframes are rock solid.