NAVPI
BHX will have little interest in LC airlines that want to operate for 10 yrs and pay virtually nothing for the priviledge.
It works well at STN as they are geared up for low cost,and can absorb the impact easier as their costs are lower.
BHX terminal and piers are geared up for full fare so cannot compete. Which is why they are far more keen on airlines that pay ie full fare ones.
However you are absolutly right BHX is a very different airport than MAN for the reasons you mention.
However not sure how they increase passenger numbers considerably if they cannot get enough new full fare airlines and cannot drop their prices to attract lower cost ones ?
Nigel