yes you are correct.
becaus efirst ip adress is used as dircet broadcast adress. such that if any host from other network wants to send packet to all the host present in any network
and second used for knowing the adress of own network
I think it should use 219-2 since the two host id is used fordifferent purpose
becuase he mentioned that the two NID adress were eliminated only for class A network, because the first and last is used for noIP/invalidIP and loopback adress respectively