Yes, this whole turn of events seems quite interesting to me. For decades AWS has worked hard to codify and homogenize filler metal specifications for simplification, for safety, and for economics, and to minimize qualifications, and now the brand specific requirements that are finding their way into more and more specs seem to be rendering the specifications irrelevent. Or at least not as meaningful.
What does it matter if its A5.1 7018 when you gotta have Lincoln or ESAB or whatever?
Still need the generic to identify? Sure.
It would be, after all, Lincoln 7018 or whatever. But for how long?
What happens when more specific services and requirements render the need for more specific chemistries and mechanicals and more stringent testing regimes?
Proprietaries in carbon steels like in nickels?
Might be nice to hear from some filler metals guys.