I'm not too sure if I did write it in detail, but the reason is pretty simple, Xue Bai didn't know. Huo Long found Feng Huang long before the plot, and therefore story began.
This is interesting. I'm loving how capable the mc's father is and how you are showing the flaws of the mc without making him seem stupid. On earth he was just a 15 year old who was extremely sick for a number of years so it's only fitting he is still lacking in a bit of scheming and secrecy.