In FH5, the first series of the Forzathon were relatively easy to complete, taking into account that people had only had so much time to make progress in the game since its release.
However, when the Rally Adventure expansion was released, the weekly challenges added for it required completion of most or all of its regular events from the outset. This meant that a lot of players who wanted to complete those weekly challenges out of FOMO had to rush through the expansion to make the challenges become available, rather than getting to enjoy the expansion at their own pace.
Given the above, please let FH6 continue making early Forzathons achievable even with moderate progress through the game, including the future expansions.