[2021] Were achievement rewards removed to prevent people from farming detonation flags??

Hello everyone, just to clarify, that clip was conveniently clipped after I had clearly stated that I will not answer the question of why the change was made. To make conversation, and to name examples of different reasons that something can be changed I gave that story along with other examples. Sorry if that caused any confusion, I will make sure to give examples not related to the question at hand in the future to avoid confusion or misinterpretation. For anything that we do share information please reference the devblogs and patch notes, if there is any information about changes that we can share those are usually the places to look for them.

Correct, like I mentioned it was an example of things to consider, but as I mentioned right before that clip starts I was not answering the question. I wanted to make sure to follow-up about the question, unfortunately, I had to be out of the stream to be able to look for the information for the community.
We updated the Achievement's section interface in 0.10.4. In this connection we removed the rewards that were previously issued for earning achievements.

Earlier, there were a few signal delivery methods, we used achievements section as one of them. Today there are many ways to obtain signals - in Armory, bundles, containers and combat missions, so we don't want to overload Achievement's section interface.

We're introducing you weekly chains of combat missions. You should earn Base XP in victorious battles in Operations, Brawls, Ranked, Random and even Co-op battle types. That also will help co-op players get rewards, which previously weren't available for them. The difficulty of completing the task depends on the type of battle. For example, you can be a frequent winner in Co-op Battles, but receive less XP per battle, or you can quickly obtain the rewards by earning more XP per battle in a smaller number of victorious Random or Ranked Battles.

The available rewards include More Signals containers and Gift containers. On average, you should receive the same number of signals as before.