If you have feedback for the game they, and you are cool about it, they are very willing to hear you out.
Right now they are asking for the communities feedback. From developer TealKeli:
“Hi people! Quick question we’re interested in getting feedback on. We’re in the process of making changes to the progression system, including achievements. When we go live with these changes, we can port the current stats over, or we can set everything to 0. Do you guys have any preferences here? Vote Y(es) if you are fine with resetting the achievements to 0 (this means you will receive the rewards again), or N(o) if you want to maintain your current score.”
If you want to voice your opinion on the question, head over to the Discord Channel under the “General” tab.
For what it is worth, I am voting “Yes” wholeheartedly. This is a great opportunity to re-earn achievements, earn more gold, packs and resources. Which means more cards in our collections!