Right, so speeding up blocks is roughly equivalent to increasing the block size, which is what the whole BCH vs. BTC split was over, correct? So I guess the arg

Right, so speeding up blocks is roughly equivalent to increasing the block size, which is what the whole BCH vs. BTC split was over, correct? So I guess the arguments against it would be the same? And if I understand correctly the core argument is that it would make it harder for anyone to verify the entire block chain. Is there any real argument against it beyond that?