The game used to be balanced so it was possible for a majority of casual players to reach max level by the end of a season. Maybe they weren't raid ready, or Crucible ready, but they didn't feel like they were leaving anything on the table.
Now they've balanced progress in the game to cater to the small population that has 3+ hours per day, every day, to play this game and completely ruined it for the people who play for less than 20 (I'd argue even 30-40) hours per week. And it didn't even work; the people who were complaining things were to easy and they progressed too fast still ground their way to max power and light in a couple of weeks.
I would be interested to see how much time the median Destiny player spends in the game, I'd be willing to bet it's far, far less than the amount of time it's going to take to reach 450. I'll also be interested to see what the median power level is for a Destiny player at the end of the season. If it's over 300, I'll be pretty surprised.
I've already given up haven't/won't even start my other characters only because I paid for it all, I just wait to see what the next dlc does but the quality of life sucks.