Could be!? Nameless ROM P4 features the Mackay kernel (ICS_2014) while the Omni ROM (JB 4.3 w/o SELinux). It would be better if we have an actual port of the Nameless ROM P4 to our device instead of using Omni ROM to do just that. I think it is premature to have Nameless ROM on the P5 since the P4 build is still in testing phase.
[ROM][4.4.2][P7300/P7310][PORTED][Unstable] Nameless (10-3-2014) & Omni (14-2-2014)