It does seem a trifle odd that people are happy to discuss and post pictures of the RAF having a jolly time intercepting Bears,yet there is no discussion about an odd submarine appearing in Uk waters.
Yes, but you're forgetting that we've still got plenty of capacity in AD role compared to other fleets that are "stretched, but not over-stretched" with OOA commitments.
Even if the ASW world had the same penchant for publicity, it seems unlikely that there would be the same sort of capacity left to deal with the extra business.