There is no repercussion if Xposed is not installed.
Also The default framework version of Google Play Services 248 (arm + arm64) when replaced with 238 (arm) works fine without any crashes. The only problem is it auto-updates the app to the 248 one.
1 Temporary solution I found was to turn off "Auto-Update apps" in Play Store. But now with the installation of Google Allo, My Play services has started auto updating again.
Sorry if this falls under the wrong thread.
Any help would be greatly appreciated.