Since Terra doesnt bring the reanimated creature back tapped and attacking, its a fundamentally less aggressive commander, but the lower mana cost to reanimate the creature gives you more flexibility on the turns you use the ability
The defending player can assign blockers normally even against tramplers
The idea here is that the card pool is designed to build decks in a more puzzle-like style, meaning that they usually rely more on synergy and not raw power level
If you head into a nearby Walmart, Costco, Sam's Club, Best Buy or GameStop location there's a decent chance that you will find them stocked there
Ultimately, the ratio of your total number of counterspells versus other interaction versus your actual win conditions comes down to playtesting, personal preference, and the local meta you encounter