Radar beam-riding is, of course, all-weather.
You mean SARH? It is all weather, but also active and something the target would detect.
But the wire guidance doesn't need to be optical.
The only wire guided weapons that don't use optical tracking of the missile launched is in torpedos, where the sonar of the launch vessel tracks the outgoing torpedo and the target and calculates guidance corrections which are then transmitted down the wire to the torpedo to steer it to impact the target.
TOW, HOT, Milan, AT-4, AT-5, AT-3, AT-1, AT-7, AT-13 all use wire guidance and a missile tracker called a gionometer that tracks the coded flare in the tail of the missile and calculates the distance from the missile to the point of aim of the gunners crosshair and calculates flight manouvers for the missile to get it on target and then transmits them down the wires. In very bad weather it wont see the flare and therefore wont be able to guide the missile on to the target.
Actually the wire-guided missile supposedly used by Osa is guided very similarly with the other command guided missiles used by Osa, i.e., radar guidance with the secondary option of using optical guidance. The only difference is using a wired link vs a radio link; just the communication method is different.
A bit like the difference between the AT-2 and AT-6 and AT-9 which use radio command guidance and the AT-3 which is still command guided but using a wire for data transmission.
the wire limits the speed and flight performance of the launch helo during guidance.
On the topic of radar beam-riding, the problem is the low accuracy that can be achieved, and the source of the problem is the large wavelength of the radars in comparison with the optical wavelengths.
If you are going to actively emit radar waves from an actual aircraft radar you might as well use SARH guided missiles... a bit like SALH except using a radar beam instead of a laser to mark the target... the missile could then be lofted to a steep angle to deliver a diving top attack result...