I still haven’t seen independent confirmation of the cable cutting from a non Israeli source, nor have I seen indications of a cut line on any of the looking glass servers I’ve checked. This bit is important, because we should be able to independently see the results of a cut sea cable.
I think the overall takeaway is that at least some cables took some kind of damage. Blaming Yemeni rebels might be nonsense, though - other actors in the area might have done it.