If you want to earn a Pyro-Skill you need a real point in Pyro, that is already in the game, at least it should be. Only exception skills elves learned from Corpse eating.
You are right. In the past you could learn any pyro skill by equipping an item with +1 pyro and then removing it. Since the last couple of releases you can't.
There are plenty of items that give you a specific skill after level 7 or so. Gloves that give you Shocking Touch, boots giving Fortify, that sort of thing. These don't require any point in the relevant skill to use - perhaps that is what the OP meant. It seems fair enough to me though as you can't learn things you haven't put a point in - only use the skill on an item - and you lose that skill if you unequip the item again.
