Replicate creates copies of the spell via a triggered ability, which can also be responded to before the caster gets any copies. The copies aren't cast, so they cannot trigger heroic abilities. They also resolve independently with players getting the chance to respond in between whereas with strive you are dealing with a single spell and all its targets are affected when that single spell resolves. And of course, a single counterspell can stop the entire strive, with replicate you need one counterspell for each copy and the original (usually).
So yeah, replictae and strive are worlds apart.
And of course if you copy a spell with strive with Fork effects, you get to choose as many new targets as the original spell targeted, whereas if you did that to a spell with replicate you would not then get to also copy all the replicate copies.
If you want the landsgone, it's an option. It can also sit around and then save your ass in the late game when the two lands are no longer relevant. Not saying the card is any good but it does have a niche.
Eeeeeesh. Pain-taplands. Once upon a time there were some grody dual lands, I think this cycle was better than the Wizards' School cycle at least. And the Pinecrest Ridge one. You can give out about duals that are less powerful than you'd like all you want but we'll never get anything as bad as this cycle at any rarity in this era imho.