Is Exploration Too Powerful for Modern?

With Modern Horizons on the... horizon, Matt and Eric ask and then test the question: could Exploration be one of its inclusions?
Round 1: 08:31
Round 2: 36:23
Round 3: 50:02
Round 4: 01:08:18
Round 5: 01:20:53
Round 6: 01:39:58
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