You guys are overthinking.
Eriksen wont play again, not because of the regulations, but because it's a risk nobody is willing to take.
If you were a doctor, what would be the chance that you sign his medical clearance knowing he'd had a cardiac arrest before? Remember he passed all the tests, and then he collapsed.
Or if you were the club, any club, or the coach, would you play him at all? You would demand all players to give their all right? But what would you do when you notice him being a little behind in intensity? Yell at him or drop him entirely due to risk of another collapse?