Anyone know if there's a way to get the JE Import page on the Transactions => Financial => JE => Import page to run workflows and scripts?

setup>import>import preferences - check the run workflow and script box

Does that become the new default for all imports?

Yes

Thank you, @Sam-I-Am

Other option is to use setup >import>import CSV records then on the 2nd page expand the advance options and select the run workflow and script option