Whether or not the idea has merit depends on how well or how badly the clubs who have gone up from the NL via the play offs are doing in L2 and whether or not it's the same few established EFL clubs battling to stay up by the skin of their teeth, season in season out.

Grimsby are currently 16th and then you've got Hartlepool and Harrogate both struggling.
As far as I can recall, neither Rochdale or Gillingham have been in a serious battle with the drop in recent times until this season.

I'd like to see an increase for obvious reasons, but from a neutral point of view it's not exactly a compelling argument.