There are no ports on the EX2300 with VC enabled per default - not even on the -VC bundle SKU.
The VC bundle SKU is basically an EX2300 switch with a paper providing an RTU code so you are actually allowed to do VC (yes VC can be enabled on EX2300 without installing a license and you don't get any warning when activating VC). So pure honorbased as the MX or JSB/JSE featureset on SRX.
I have seen roadmap indications about making two ports VC per default on EX2300 in some of the Junos releases this year... but I will not expect the EX2300 to be factory shipping with that release before well into 2020... That's at least my personal expectation.
-- Best regards,
Jonas Hauge Jensen Systems Engineer, SEC DATACOM A/S (Denmark)