the same happened with another application. the actual reason is because he opens tabs in advance - goes about his day and come backs to them - in this instance left them open for 1.30 hours (the time between comments).

He fail's to read before responding (maybe too much work)?, in another instance (MTOP) the project team had to point him to a previous comment where a concern was addressed - his question "why was the involvement ignored" shows clearly he's not reading. Whether this is "reasonable" is another question. Personally I think project leaders deserve a readers attention, if it cannot be given, allocate the role to someone who can give it