I would assume loose language, referring to a CALL as a JMP. However of the two reasons given to dislike the large code model, register pressure isn't relevant to that particular snippet.
It's performing a call, ABIs define registers that are not preserved over calls; writing the destination to one of those won't affect register pressure.
It's performing a call, ABIs define registers that are not preserved over calls; writing the destination to one of those won't affect register pressure.