While Bitcoin [Core] proponents are mostly worried about the fiat price, Bitcoin [Cash] users are worried about how to make it more user-friendly and useful in commerce.
It's extremely ironic BTCers didn't stop complaining their chain was being spammed considering keeping a 1MB limit is PRECISELY what makes BTC vulnerable in the first place. It's 32 times cheaper to clog 1MB blocks.
It's also less efficient, a lot more energy being spent to process just 1MB of transactions each block.