Shebang scripts are supported directly by the kernel via the exec family of system calls, so ld.so shouldn't be involved.

https://github.com/torvalds/linux/blob/master/fs/Kconfig.bin...

  config BINFMT_SCRIPT
 tristate "Kernel support for scripts starting with #!"
 default y
 help
   Say Y here if you want to execute interpreted scripts starting with
   #! followed by the path to an interpreter.