Bad Omen, Trial Omen, and Raid Omen all are neutral effects. However, Infested, Oozing, Weaving, and Wind Charged are considered negative. They all do not directly cause harm.
For example, one can use the Infested and Oozing effect to make a machine to produce slime balls, which is not exactly negative.
Comments 4
True, especially for potions such as Oozing and Weaving, which are used for farms. It would maybe make more sense if the effects were neutral.
Infested definitely seems negative to me. The others should be considered neutral or positive. Weaving helps the player move through webs quicker so that's 100% more a positive effect than negative. Also I doubt this is a feature request because it's not asking for something to be implemented, potentially WAI though.
The only reason they are a hindrance to the player in the trial chamber is because they are applied to other mobs. Similar to spiders spawning with regeneration, it is a negative thing to the player, but the effect is still considered positive because it is a positive effect to the mob to whom it is applied.
Can confirm, however this may be a feature request. These effects are meant to hinder the player in trial chambers.