Madison Li is one of the brightest scientific minds of her time, spearheading advanced research in The Capital Wasteland and The Commonwealth
Vindicate is too slow and singular and you will lose to every other deck if you load up on too much pure artifact hate
Play it in decks where you can afford to discard energy and focus on sustaining your evolved Pokmon while disrupting your opponent with Confusion
It is often the case that the few artifacts and enchantments in a deck are either really serious threats or of high importance to the decks plan and so even in decks where there are only a couple of targets it is good to be able to deal with them, great example of this include the various equipment, most notably the Swords, Sulphuric Vortex, Zuran Orb, Sneak Attack, Crucible of the Worlds, Oath of Druids and so forth
Trinket Mage Trinket Mage is a card you probably own multiple of and have played countless times
The most likely reason for Wizards to make OM1 has to do with digital licensing rights