Following the dumpsterfire of a live stream, I think I speak for the community when mentioning the following:
Please revert daily cap on sol erda fragments, if this is pushed through it will literally take 2 years to max our 6th job skills.
Please keep frenzy functionality, these are items that players would spent thousands on marvel. I know there may be technical issues with frenzy in instanced maps, but please try to work those out...
New Age was supposed to be an exciting patch. Nexon even marketed this as the biggest patch since bigbang, but all we got were nerfs to exciting content and sewage
The issue with 2x drop being removed isn't in the value of your items, because as you've acknowledged the meso value of items is determined by the market.
But you know what doesn't change with the market? Absurd Star Force costs to 22!!!! The biggest meso sink in the game has now effectively become twice as deep, and with meso rates being literally reduced to 50% of what it once was star forcing items will become much harder for all players. For players who grind for meso: it'll take twice the time to earn that meso now. For players who rely on ah and merching: since all items are worth less in meso it will also take much longer (roughly twice the time although this is more unclear) to get the meso for star forcing too. This change literally hurts every non-reboot player in their sf progression.
The decision to remove 2x drop coupons (1 day / 4 hr) seems to be erroneous. A significant amount of the player base buys these coupons with maple points converted from meso, and NOT a low popularity item as you suggest in your post. In fact, it is likely to be one of the MOST purchased items behind cubes, scrolls, and royals.