after root my huawei y300 with rootgenius missing maps und youtube

After rooting of 2 of huawei y300-100 with rootgenius i found out that at least 3 apps were deleted by rootgenius. I'm very shure, that e.g. maps was there on both phones, because i proved the working GPS with maps. After using rootgenius, i installed sshdroid, and with df I was surprised about lot of free space in /system. And i saw these apk files with zero size!

Code:

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/data/data/berserker.android.apps.sshdroid/home # ls -l /system/app |grep "Jul 14"
-rw-r--r--    1 root    root            0 Jul 14 13:06 GMS_Maps.apk
-rw-r--r--    1 root    root      2979560 Jul 14 13:06 Kinguser.apk
-rw-r--r--    1 root    root            0 Jul 14 13:06 Maps.apk
-rw-r--r--    1 root    root            0 Jul 14 13:06 YouTube.apk

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pulling maps and youtube from a 4.0.3 Android (this was the closest i have here) and try to install the apk files fail with "App not installed"

I used version 3.1.7 from here: https://androidmtk.com/download-root-genius-application

So, did somebody else made this experience?
can somebody supply me the original apk files (i dont like maps version 8!) with ADB
adb pull /system/app/Maps.apk maps.apk
and so on from his Y300 ?

btw: can i delete the rootgenius (green dog) app again? The guardian to root seems to be Kinguser.