IMO nftables is best used with your full ruleset defined in a file, and atomically loaded. nftables certainly does make your ruleset more grokkable than statefully appending ad-hoc rules everywhere, but you necessarily need the whole picture to gain from it.

So unfortunately it makes less sense for one-liners. Case in point: to use the masquerade action in a postrouting/nat chain, you also have to register a (possibly empty) prerouting/nat chain.