It certainly was a needed change as the Quest Potions just offered way too much value hurting the economy as you could literally buy multiple accounts and recover the 10$ investment in no time farming rewards.

If anything, the Quest Potion situation really showed that it's important to give new players a way to indirectly buy more rewards from the game from the start at an affordable price with them having the chance to get something big. Maybe this could be made into a use-case for SPS. Something in the line of having a certain amount of SPS staked allows players to get 1 Chaos Legion pack upon completing the daily quest at a reasonable price or from some kind of season pass that unlocks extra rewards daily.

From everything I have seen, having something to look forward to daily (worth more than just 1 or 2 reward chests) really worked motivating for new players.

Of course, it needs to be done in a way where bots can't farm it like crazy.