I don't like this. McClane again looks like the ubercool superhero again, just like in Die Hard 4. He isn't supposed to be that.
Pretty much. Part of the appeal of the first three movies is that he's just some poor bastard who repeatedly get sucked into situations like that.
Wouldn't it make sense that, at some point, he would have figured this shit out and have some idea how to handle it?
Arguably, this counts as character development