Nope, the one rule catches >all< VTY blocks. Remember, if VTY 4 is configured differently than VTY 0 3, it will be a separate block too. You can't count on the blocks being "vty 0 4" and "vty 5 15". Not to mention this adapts to those sites that only have VTY 0 4 and no VTY 5 15...
My regex works no matter what VTY blocks you have. You only need a single rule...
Think of it as kind of like a "highlander regex" ... THERE WILL BE ONLY ONE!!