I think you didnt read right, the new Alpha Injector gives you access to the rest 15m SPs (Omega skills) for one day. Its not working only for the free 5m SP but for all skills.
The only difference is that an Alpha will not have to sub for 30 days to get access to those skills, he will be able to train them whenever he wants to and for as long he wants (1 or more days).