The issue I have here is not the business logic but the fact that they were bemoaning the 767s and 757s as a dump of a plane without admitting that it is not the equipment that is the problem; its the decisions made by the same people who simply refuses to invest in bringing the product up to standard. It’s silly that due to lack of investment they are inflicting further operational complexity on themselves (i.e. we need to factor in which product is a dump and which product isn’t when scheduling flights) that shouldn’t even be a part of the equation in the first place. Those planes aren’t leaving in 1-2 years - invest already.
Vasu’s comment about how the aforementioned dumpy 767 is a good plane to test new markets is completely divorced about how important brand is when trying to penetrate a new market and the condition of the product you are bringing into the market does have a significant influence in that regard.
Nonetheless, they are correct with their notion that lower yielding markets will have a lower priority when it comes to type of product.