This just means you can't use electronic passport gates, so you spend more time at border control and may be targeted for harassment for non-compliance. There's a small chance you could be fined, since the passport isn't actually yours it belongs to the government.

The passport deliberately requires the MRV as input for the NFC data stream, so to get the data out of it a hypothetical attacker has to read your passport (because that's where the MRV is). That's why the electronic gates require you to show them the passport open at the right page with your data on it. They literally need that data to get the exact same data from NFC.

For a machine this is brilliant news, it can now let you through the gate after deciding that you're allowed in. For a human adversary it's not an improvement at all because looking at a photograph versus downloading a JPEG of the exact same photograph is not different.