She can't bring them pain: Pleas from a Morgana main
Let me start this thread off by admitting that I'm not disinterested. I really enjoy playing Morgana, and I play her almost exclusively in ranked. I have hundreds, maybe even a thousand games played on her. I played her during Season 3 when she had been forgotten by everyone, continued playing her when she became a ban target, and am still playing her now despite the nerfs to nearly every ability in her kit.
But, honestly, I'm about to give her up. She just can't hurt anything any more. All of her damage is gated around landing her Q, which:
- Is among the slowest moving skill shots in the game.
- Can't pass through minions, and,
- Has a nerfed hit box.
The slow speed of this skill shot, combined with it not passing through the minion wave, and the reduced size of the hit box, make it easily avoidable by anyone who is paying attention. This already bad situation for Morgana is compounded by the incredible amount of mobility, block, and/or complete CC immunity that some champions now have.

Here's my point: Because Morgana's Q is very difficult to land, and because nearly all of her damage is gated around that Q, when Morgana finally does land this skill shot she has to be able to do significant damage to enemy champions. If she can't hurt opponents even after landing her abilities then she's not viable in the lanes. Right now, she just can't do that damage. In the past year Morgana has had her Q nerfed, her W nerfed, her E nerfed, even her flash engage with her ult nerfed. The result of all these nerfs is a situation where Morgana can't do enough damage to matter even when she manages to land her skill shot against much higher mobility melee opponents who, by contrast, can kill her in literally two seconds.
I've enjoyed playing Morgana for a long time, and I still do. But right now Morgana has to be played like Janna., and her toolkit isn't designed for that passive support role.