As a guy who has spent over 1600 hours on Destiny 1... then 100 hours on Destiny 2 (PS4)... I can probably justify my opinion.
Destiny 2 is different from Destiny. It may feel simplified... but when D1 came out, that was pretty much the same - people peaked too fast.
The trouble is, everyone is in SUCH a rush to be "world first" at everything, that they don't enjoy it. Streamers are hating games now due to this very reason; the pressure to get 305 first... raid ready first... be first to prestige things etc
We are the same. I was the same. I took a day off work of D2 PS4 - did the midnight to 5am session... slept for 2 hours then played until 11PM solid.
I wanted to be raid ready for the following week. My buddies did this too. By the time the raid dropped, they had 3 characters at 285+. I had 1 at 285 and 1 at 240. I never did the raid.
Looking back, playing and enjoying the game would have been a better experience.
There have been some bad changes - or different ones, depending on your slant. 4v4 PVP is something I am still 'on the fence' about. Same with random playlists. Don't think I like that. Some game modes I just don't like.
However, things are going to change. That's what Bungie do. Things aren't working, they change things. Private games will be back. More game modes introduced. More content. More FREE content. Seasonal stuff like Sparrow League Racing / Snowball fights etc will return.
I've not played much D2 this last week. Why? Well, mainly because other **** in my life ie my mother dying of kidney failure (final stage now, so not much longer).
If you are new to Destiny universe, you will like it - but take things slow! DON'T rush it. Explore the worlds. You'll notice SO much. Enjoy it more. DON'T be "world's first" unless you really want to do it. Heck, rush the first character but take the 2nd and 3rd slower...
Tips: Don't infuse until 280+. Don't do exotic quests until 280+ - as they'll drop at higher power level which you can use later to infuse.
Make friends.
I have SO many wonderful memories from D1 and made so many friends.
Ask for help - we are all here in the same position. If you are stuck on a quest, other people can join you.
Most of all... stop calling Destiny an MMO. It isn't. It is an FPS shooter with some MMO features.