Installing Google play services without flashing
Tried to do this, too after my first few flashes, but this did not work. As far as I know it makes a difference for some apps if they are system Apps or just installed and I think this is here the case, too. After all you could install the smallest packet, then you have got less system apps if this helps. Another idea would be to disable the background processes as showed in this video from XDA and then those apps should just work if you really open them up. This would not involve greenify but would have the same effect as far as I can tell.