Titan is Saturn's moon, so basically not a planet lol. The story is pretty short and felt kinda rushed towards the end, the plot with the speaker was funny though.

When you reached around Power level 275, the grind is more weekly than daily, since you can only get higher level upgrades from luminous engrams that drops from weekly activities. But they will launch more activities in the upcoming weeks so we have to see how this will play out. Crucible drops some higher level loot too sometimes.