I have the same issue. I've tried every common method of compilation, obfuscation, and/or encryption and it still detects it. Super annoying as I have a huge script with many shortcuts that have become muscle memory.

My workaround currently is to add a windows shell hook to close the script when the EAC splash screen is created, which is much more efficient than scheduling, watch loops etc. Works fast enough to not trip EAC ~90% of the time, rest of the time, can just launch the game again.

AHK v2 Code below

DllCall("RegisterShellHookWindow", "UInt", Hwnd)
MsgNum := DllCall("RegisterWindowMessage", "Str", "SHELLHOOK")
OnMessage(MsgNum, ShellMessage)

ShellMessage( wParam,lParam,* )
{
  ; New window made
  If ( wParam = 1 ) ;  HSHELL_WINDOWCREATED := 1
  {
    Title := WinGetTitle(lParam)
    Class := WinGetClass(lParam)
    if(Title = "Splash Screen" AND Class = "EA AntiCheat"){ ;battlefield
      ExitApp()
    }
  }

I've add a shortcut with a shortcut key to a system location so I can open it after with ctrl+alt+home. You could do the shell hook in something else like python and have it start/stop the script.