Your eAPR information and what you have submitted in it bears the relevance, that's all.
You could update any information before your submission, not a problem if it didn't change your score below your ITA cut-off score.
28 is way too late to apply for H&C based your parents' decision to leave. You could have applied 10 years ago, That is why you were legitimately refused.
But you have a strong profile to try to apply for PR based on your own merits.
Good luck.