Time travel says, "For each suspended card you own and each permanent you control with a time counter on it, you may add or remove a time counter." So, you can put out cards like Judoon Enforcers, Star Whale, and Atraxi Warden out early
Of these party members, few have risen to the popularity of Tifa Lockhart
You can utterly gut a lot of game plans when you hit a relevant card in hand and dork in play
The same is true if its removed from the stack in any other way (such as by a second even more Glorious End) or if it resolves and you dont lose the game (perhaps because of the emblem of Gideon of the Trials)
Staple lands play a vital role in shaping the mana base of your Commander decks, providing essential mana fixing and ensuring consistent access to the colours of mana needed to cast spells
Plus, you can choose to build around weird commanders, or ones that are generally considered bad too