Get a grip and stop the griping. West Indies does not have ONE set of pitches regardless of the fact that many are slow. These matches were played in Guyana at the Providence stadium and the pitches in Guyana have ALWAYS been low and slow and that was BEFORE this stadium. Just the nature of Guyana surfaces.
Barbados tends to either be flat or has pace and bounce but no real lateral movement (see Australia in WI 2003 for the former or England in WI (2009) for the latter. Of course sometimes it hasma little something in it for the bowlers early on and flattens out later( see Australia in West Indies 2008).
Can't remember if tere are mathces in St Lucia but Beausejour is simply a good batting surface so there will actually be diffent conditions in spite of the fact that most of the pitches are now slow.
Besides the NZ/SL matc hwas quite exciting. It does not take sixes or high scoring for T20 to be fun. Sorry, that can get monotonous. At least the bowlers are no longer cannon fodder.
And Ireland's bowling isn't all that poor. Their spin bowling department is quite useful. Guyana is unlikely to be a high scoring venue due to its very nature.
If scores are low in Barbados it will be because batsmen have lost the art of batting when there is the slightest hint of movement which they have due to the dead pitches everywhere.