Either use a normal or bluetooth keyboard, or give it a go, are you sure you can’t push the top of the keyboard down towards the touchpad and then lift it out, maybe there are some small tabs to release?
I will probably use a Bluetooth keyboard, because there are small connectors made from super fragile plastic, I’ve tried to disconnec the battery from main board and it almost broke into pieces.
It looks like it’s made none repairable for a purpose.
What pisses me off is a fact that liquid touched only 4-5 keys, but now most of them 80% does not work.