Why does no one ever talk about the state of Nocturne?

As a Nocturne main, I find his current state in this game to be extremely lackluster and chaotic, and I find him mostly unrewarding to play as.

Here are some of the current issues with Nocturne:

-One shot, or be one shot

Explanation: His kit doesn't provide for any other itemization, you have to build to one shot, or you get one shot.

-Has no disengage from a teamfight, once you're in, you're in. (unless you flash and get out by sheer luck).

Explanation: His ultimate can only be used as an engage. Nearly all assassin champion's excluding Nocturne have a method and form of dash that allow them to quickly enter a fight, and exit a fight. ( )

-his only engage and dash is his Ultimate, which has a long cooldown

Explanation: Almost all assassins have a form of engage that is not ult reliant, meaning that they can fight consistently with enemy champions and move in and out of fights. Nocturne is unable to do so, once he ult's in, if he does manage to pull away, there's no way for him to enter back into a fight without the threat of being kited.( )

-Has no way to counter other champions, but there are a massive amount of champions that counter him

Explanation: While Nocturne's only ability to counter other champions is to one shot them, there are a massive amount of champions that counter him. Here is the list. ( etc.) There a lot of other counters for Nocturne, and of course there are methods of outplaying some of these players, which I do consistently, but against a good player who understands the mechanics of Nocturne and who understands timing, they will be able to counter anything that a Nocturne can do. Aside from champions, all you need to counter him as an ADC is Death's Dance.

I find it kind of sad that a champion such as Nocturne, who has such a cool concept behind him, is often heavily forgotten because of how useless and poor his kit is. It is extremely outdated and can't do much against a player and team using their head.

The issue is that once you ult in (with your only method of engage), you have no viable disengage, meaning you are prone to heavy amounts of CC immediately upon contact, sure your W can take one out of play, but there is always more than one source of CC in a team composition. On top of this, he has no viable engage for the next 60 seconds until his ultimate comes off of cooldown.

I am stuck with countless games on my Match History resulting in losses, when I believe my stats and game impact is well above average, though it is still extremely limited as a Nocturne main, and I can only do so much, when there are so many counters. So here's a link to my Rework Concept, of what I feel would make Nocturne a better champion: https://boards.na.leagueoflegends.com/en/c/skin-champion-concepts/BbmkV8kG-nocturne-in-depth-rework-concept

If anyone wants me to explain anything about Nocturne, and why I believe one thing is a specific counter, or want my input on how something might work related to Nocturne, please message me and I would be happy to respond.