I've seen many comments talking about how the nerf "take the individuality out of omen" and "lowers the skill cap of the game", like tex said on this tweet, and i couldn't disagree more. The omen nerf is perfect and here's why:
1) Omen pick rates were 68% during Masters Madrid, 64% during Masters Shangai, 63% during Champions, and 75% during GCC. The next orb smoke in Madrid was Astra with 9%, in Shangai and Champions was Brimstone with 11% and 13%, and GCC was Astra with 16%. Viper was above him through the year, but she was used mainly as secondary smoker/pseudo sentinel, never being the main smoker most of the cases (and she was also nerfed to control pick rate). Omen had insane supremacy and it was being used as main controller on almost every map of the current map pool, with the exception of Pearl and Bind (the latter which he was still used rare times as secondary smoker). And mind you these were almost chamber 2022 levels of usage.
2) What differs him from other controllers was his mobility, not his one-ways. He can easily disengage, take info-peeks, stalls execs with his blind, and create chaos and plays with blind+tp's in a way other controllers can't. His uniqueness is in being agressive and taking risky positions because he can escape later, and he was flexible on attack because he could lurk in distance but also take part on the exec and post plant.
3) You can't nerf his other habilities because there's no reason to do so. His current pick rate was because of his agressive smokes, that forced the other team to use util to get on certain areas, and were getting too many in too many maps. His blind already got a pretty significant nerf last year, and his tp is already pretty fine and counterable, being 100% dependent on the player habilities to when and where to use it. They are his signature habilities and is kinda dumb to say riot killed his individuality and saying these would be better nerfs at the same time.
4) And my central point: next year's meta needed that nerf. First, there were many teams that were clearly building with one of the pillars being omen as the main controller, having omen players and not actual full-role controllers on the team (Leviatan, i'm looking at you). If anything, the nerf is actually forcing people to be actual controllers, good with many characters, and not just omen players, and the skill floor is rising. Second, Omen is still viable on many, probably most maps, he's just not going to get picked as much. He can still do many one-ways, they're just more restricted now. Having a diverse meta with more strong agents is actually pretty good and exciting, and will open the door to many different playstyles.