Driving without due care and attention is (obviously) a driving offence and in of itself, I'd have thought unlikely to result in the loss of certificates. Of course any conviction will result in a referral to see whether it affects things with regard to your certificates, but I am at a loss normally to see how such a conviction would actually result in losing them.
Of course the above is very much affected by the individual circumstances. For example if the conviction is merely one thing in a list of other matters (whether convictions, cautions, fixed penalties or any other incidents or intelligence) that shows the certificate holder is of a reckless or unstable nature. Or the circumstances are such that recklessness is apparent in this conviction (you may say that a charge of reckless driving might be more appropriate, but the CPS, being the CPS may well have reduced a reckless to a due care to "cop a plea").
So, as can be seen, unless all is revealed then I, or anyone else reading this can't really comment with any authority. Especially as the OP intimates that he is not telling the whole story at the moment for probably a good reason. It'll be interesting to see how it turns out though.