I thought it was a case of them self-repairing instead of actually being indestructible. Because that's actually worse. If they are simply extremely durable but can potentially be brought down by potent enough weapons, that's fine. But if they just pull themselves back together afterwards, that's going to be an issue. Because then numbers and attrition are going to work against the Wakandans as the battle progresses.
__________________ Never take life seriously. Nobody gets out alive anyway.
You can interpret it in that way, sure. But I think there is a distinction. For me, there is a difference between something you cannot actually break and something that can simply reassemble itself after you've broken it. Now, saying the army is "unstoppable" is a different story, as that could apply to both actually being indestructible or self-repairing. But anyway, that's just word semantics.
The actual point though is that self-repair is arguably something worse to deal with over the course of a battle. Because even if the vibranium can damage them, there is nothing to suggest it can disrupt the enchantment that will allow the army to just keep repairing.
__________________ Never take life seriously. Nobody gets out alive anyway.
Maybe Wakanda can just baricade them in a force shielded prison. Heck just push them into a deep pit. The golden army could self repair but they didn't seem to pack that much offence. Even get the rhinos to run through them and have wakandans pick up the parts and run in different directions.
To be fair, Cull got dragged along that thing for like a couple hundred feet before literally exploding. In comparison, Outriders in enough numbers could force their way through without sustaining more than superficial damage. So, if 4900 clockwork robots come crashing into it, I am not sure they're going to get Cull'd (I couldn't resist the pun, sorry).
__________________ Never take life seriously. Nobody gets out alive anyway.
Soooo the plan is for each singular Wakandan to take a single piece from thousands of moving parts for each Clockwork soldier, of which there are 4900? I don't think there's enough Wakandan's on the battlefield. Or in Wakanda. Also the Wakandan's will be getting slaughtered wholesale the entire time.