Regardless of your approach, this will translate to you winning
In Commander specifically, wiping artifacts in addition to creatures can really, really hamper some decks ability to come back from wipe and cripple them for turns
Vintage kept its restricted list, because some people wanted to play with powerful cards (and also because Type 1.5, aka legacy had started to take root, which, at the time, was just vintage with the restricted list renamed "banned list"), but in standard, you already couldn't play with all your cards, so there really wasn't any good reason to keep a restricted list
When Sage of the Falls or another non-Human Creature enters the battlefield, you can loot
Some decks run a number of mana rocks to help their sources and dont really care about how many lands they have