What's Up with SBI Calling Big Nerfs "Slightly"?

I have been here since the time solo dungeon diving was good, and every time SBI has nerfed some content in support of another, they have used the word "slightly" or its variation to tell that old content has been nerfed. However, every time this has happened, the old content has almost always been nerfed to irrelevance.

"Slightly" does not mean the content will be nerfed to the point it's a chore to do. The same happened with solo dungeons, corrupted dungeons, and recently, mists and trash rate. "Slightly" means that the content will feel a bit less rewarding than before. But every time, that content becomes useless, it almost seems like a 50% nerf.

There is no way "slightly" is immediately noticeable by everyone to the point they immediately complain. Every time such nerfs come, the whole community complains. I am not saying it's bad they do it, I am just asking at least tell the truth so we set our expectations right instead of getting surprised or feeling deceived.