Cassian Journey tier 1 grants "unusable" mats and tier 2 grants "redundant" mats

was busy upgrading my era toons trying to decide which rebel I'd upgrade after Cassian and noticed after doing the math that I'm going to be short 1,300 MK V Cresh Ability Module for one of my toons despite going through the colosseum up to tiers 6-7. was checking what I got from the first tier and noticed I got 245 zerek ability module which I imagine would have some value for tiers past 70+  however it also requires MK VII Aurek Ability Modules that can only be obtained through 5 star content thus feeling like a mat I shouldn't be getting to begin at 4 stars.

the reason I bring up Tier 2 granting "redundant" mats however is because it grants 9,250 MK V Cresh Ability Module which besides granting 7,950 more then needed mats for the last toon. Requires 2 toons at tier 55 (the last tier MK V Cresh Ability Modules are required for)  and 5 stars to even attempt it to begin with. as well as the fact that Tier 2 grants 6,700 MK VII Aurek Ability Modules but the 245 zerek ability module you'd use to get toons to Tier 75 (gear 13)

Since its possible to get the era toons to Tier 65 (gear 12) at the end of the era if you don't invest in the Journey character at all (in other words keep them at 3 stars) vs one (or more) of them akwardly being stuck at tiers 45-55 (gear 9-10) despite still obtaining the mats needed for tiers 56-65 from the first journey tier.  I'm assuming the zerek ability module and the MK V Cresh Ability Module were incorrectly put into each other's spots