As a general rule: I give Baptists the benefit of the doubt, which is to say that I assume they don’t actually believe what they supposedly believe.
Why did God institute physical means of grace?
First, we are both flesh and spirit, so it is only natural.
Second, we should not sinfully inquire into why God has instituted multiple means of grace instead of only one (the Word).
God (through Peter): ‘Baptism now saves you.’
Baptists: ‘Does it really, though?’