The Eagle X/L discussion is pretty far off topic; different mold. It's not inconsistency, it's a totally separate product. If anything, Innova hurt themselves by
not clarifying the differences a lot of the time. For the SL, FL, TL, etc. they have been pretty good about making the delineation. For whatever reason, the EX and EL were both sold with the same stock stamps for a long time, and even the ink on the back wasn't always informative.
(BUT, within the X and L molds, both have had their own consistency issues historically. Boom, back on topic!)
I do think that Innova could probably make more consistent discs if that was their goal, and they do intentionally allow for some variations. Especially thinking of Destroyers, when people started to notice the differences between runs, some people wanted more like this and other folks wanted more like that. (And some people want the full spectrum of Destroyers to cover multiple slots.) Innova seems to be trying to keep everyone happy by allowing some inconsistency between runs...BUT, of course that makes people very unhappy if they expect/want consistency.
Personally I no longer have that expectation. Been throwing Innova too long; I know the deal. It can be a bummer buying online, but good shops will be able to tell you about PLH and dome. Kinda frees your mind when you realize that the name of the mold is just the starting point; there's a lot more information to be gleaned looking at a disc's profile. Or maybe I just have Stockholm Syndrome
Also, to be fair, Innova could do a better job clarifying the inconsistencies between their runs. They have made progress in the right direction by specifying some profile information for certain molds (e.g. Flat Topped discs) but that type of information is not always available. They mostly seem content to churn out lots of discs and let shops/throwers suss out the profile characteristics of each run. There's a lot of information out there but it can be pretty esoteric.
So compression molding from Vibram should be more consistent?
Not necessarily. My understanding is they would have some of the same things lead to variation: slight differences in available bulk materials, and material contraction during cooling (even compression molding uses pretty high temperatures).
Not saying that Vibram discs are (or aren't) more consistent than other brands. I personally have no idea. Just saying that they deal with the same types of issues as everyone else, even with a slightly different molding process.
Also, sounds like the most consistent thing about Vibram discs going forward is that they will consistently be out of production.