For my own usage I think I will reserve "pamor" for the formalized patterns seen in the Indo-Malay keris and use "pattern welded" as an umbrella term for every other type of complex lamination, be it random or controlled.
Since "pamor" as a Malay(?) word is used in the Indo-Malay culture only, I do not see the need to call non-Malay patterns by this same word. "Pamor" is also loaded with talismanic significance that is perhaps not applicable to other cultures.
I guess this whole question depends on how "pamor" is defined
Emanuel