Many groups have such problem, especially first time beat LI. Since they are at same difficulty, they should all drop something useful to columi groups.
Why? Just make it drop implants/relics/bracers/belt/relic so you still have to get most of the rakata pieces fron OPS.
What noob? Run Tier 2 HM with Tier 1 HM's drop is noob? Not even Bioware thought this way, as they recommend people to run LI HM with Columi.
You just don't see the value in the gear being provided. The flashpoint already rewards players with almost 3 times more Black Hole commendations, 3 times more Columi pieces and even a Rakata piece, at this point the chances for rare mount and pet to drop -- even though they continue to compel many players -- I won't mention them, they are the bonus. All in all. I disagree with your opinion that rewards are bad, just like many people in this forum.
All flashpoints and operations reward players differently with each tier, choosing not to do those said tiers makes you lose the entitlement to earn loot from that tier. There is nothing unnatural in that. The reason why I call your "majority" noobs is that they choose to kill 2 bosses but they fail to kill the 3rd, at least according to your scenario. If you ever think that this makes sense, please send a report to Bioware about "Hey, my team and I tried really hard to kill 3rd boss but we couldn't, but due to our hard work me and my group think we are entitled for the loot the boss offers, please give us our loot thanks". I look forward to hearing their response to that
Also, it is not unusual for encounters in the game to be more difficult for specific roles over the others, this is not unintended. There are fights that are much harder on tanks, and there are fights that are much harder on ranged dps and healers. At no time does the difficulty of a boss has to be, or CAN be, the same for everyone in the team. Of course, this nerf call is even more ridiculous when they have ALREADY NERFED IT.