That’s a little bit of an overreaction, isn’t it?
Personally, I had no problem avoiding Skeletron Prime’s speedbuff in Expert, without the Black Spot. It’s not as fast as you think - any Wings will easily outfly him, you just have to be more cautios than before. If he’s still to fast, which he shouldn’t be, then Gelatinous Pillion is helpful.
Phantasmal Dragon was famous for being underpowered. It’s meant to punish you for guessing the “wrong” cultist, and when the Dragon lasts about two seconds, there really isn’t much of a punishment. Cultist needed a buff anyway. I really don’t see anything wrong with the Dragon being buffed. Also, If you give him 1 hp, then what’s even the point?
The Black Spot mount nerf is disappointing, but there’s merit behind it. It was so over the top powerful that it completely negated all of the pre-Plantera bosses and the moon events, and was in a weird position where it couldn’t be nerfed without being shot down.
Of course, your opinions are valid, but I think you could present them without such an agressive tone. It’s not merited to react so angrily to free content. I should know, because I may or may not have sparked the whole torch luck controversy.