If it was a documented anti-theft feature it could be legit. A state could theoretically have some use for the proverbial 'blow up your own bridges when you are

If it was a documented anti-theft feature it could be legit. A state could theoretically have some use for the proverbial 'blow up your own bridges when you are invaded' sort of measures. Ignoring the lack of disclosure of what should be a selling point and that there hasn't been a case of trains being stolen for later illicit reuse in recent memory.