Indeed the integrated student would appear more tangible at first sight to the airline's training process. However we don't live in an ideal world so not everyone's going to be able to afford neither the time nor money to undertake this particular route. The Modular option is there and there is success attached to it too, especially as we consider so many of ex-modular students how have successfully climbed the ladder and placed themselves in a marketable position in terms of recruitment.
However lets look more closely at the individual and their work/training ethic rather than "what can the system do for me". I just love hearing about those guys who beat the odds and get through it all and make it happen.
Neither Integrated nor modular can claim the exclusive ground of the "the ideal", they do and indeed must co-exist. Otherwise where would we be if all cars were a Mercedes S class, what about those who couldn't afford it or just needed something smaller. The Integrated Vs Modular has more influence at the early "just graduated from flight school" stage rather than the "I'm been in the game for X years now, flying turbine/multi crew ops".
In the US and perhaps other corners of the world they have a very successful modular route that produces pilots who manage to keep their aircraft in the air. The integrated option also produces 'oven fresh" graduates but after a while waiting in the job queue that continuity of training is slowly eroded over time, we are human after all
No doubt some will state that high probability (their opinion) of securing employment but 100% so what does such a candidate do then. Factor in further related issues such as the relative cheapness of the modular option and a prudent graduate can then use the left over money for a TR, deposit on a small flat or at the very least have a smaller debt. Remember not all integrated students have rich parents or relatives and that debt is sizeable by any stretch of the imagination.
Simply choose wisely what's right, relevant and affordable for you.