[Strategerist]

As for sticking out like a sore thumb ...a Harpoon or Exocet coming in at high-subsonic will stick out just as much as this British missile (and other supersonic, and soon to be hypersonic, missiles screaming in) when it comes to viable detection on a radar system. Both will be very easily detected and tracked

The terminal attack profile of the latest block of Exocets is a randomized spiral - extraordinarily difficult for fire control systems to follow.

[spetznaz]

The terminal attack profile of the latest block of Exocets is a randomized spiral - extraordinarily difficult for fire control systems to follow.

The terminal attack profile of supersonic missiles like the Moskit and the Klub are also randomized zig-zags ...only at supersonic speed. Makes it even harder than that of an Exocet/Harpoon. Much harder for fire control systems to follow (and more importantly, much harder for hard-kill countermeasures to destroy ...in particular impossible for gun systems like the Phalanx to intercept due to the supersonic erratic terminal approach, hence the slow shift to missile-based CIWS as opposed to gun-based Phalanx types).