To some extent it is. Much of what is needed to make bring destiny 2 up to the standard of destiny 1 are things that have been scrapped and replaced. To try and fix them all bungie would be as good to avoid any dlc after year 1 and instead focus all all efforts on d3 that learns from what made destiny y3 great and d2 disappointing to so many fans.

Or just do what warframe did...I don't know why more people don't mention that

Or just keep making destiny 1 the best game ever created slowly but surely.