3 or 4 moments every few days is pretty poor and having to trawl through them later to compare your times with those of your friends, if they've actually done them, is a pain, made even worse by the clunky menu system.
The Dirt Rally system means you can see how you did the next day, as well as in weeklies and monthlies.
Not to mention that we have 7 each day.
In DR, I look forward to them, but in WRC, I think, "meh, I'll do them at the weekend... maybe".
Moments aren't really much like the DR2.0 Challenges, you get an infinite amount of attempts and retries to get the medals and leaderboard times in WRC Moments, whereas the DR2.0 Daily / Weekly / Monthly Challenges are just one shot.
WRC Clubs have picked up some of the slack if you're looking for something closer to the Daily Challenges. Give these a try:
DiRTy Dailies: https://racenet.com/ea_sports_wrc/clubs/147
Weekly Power Stage: https://racenet.com/ea_sports_wrc/clubs/146
(inactive at the moment but should return soon?)
Weekly Rally: https://racenet.com/ea_sports_wrc/clubs/142
For monthly, I don't know what to recommend. You do have the Official WRC and Historic clubs which mostly go month to month:
