Yes absolutely, but indian railways is engulfed in politics especially in UP,in UP too mainly in Gorakhpur, Lucknow and Varanasi. Allahabad Duronto should have been given LHB even if they want to politicise their trains as The last time I checked Allahabad does come in UP
In case of other Duronto trains all can be given LHB coaches except Ahmedabad Mumbai Duronto as it has 3 AC economy coaches