I will go out on a limb and say that this approach can make a 250hr pilot an able and keen learner who goes on to become a very competent aviator.
Indeed.
Having trained numerous cadet pilots in that experience bracket I have seen it work well .. a lack of depth, naturally enough, which comes with subsequent line exposure ..
One of my favourite students from quite a few years ago was a young Chinese cadet pilot with Xiamen .. keen as mustard, a very quick learner, and good stick and rudder technique. Last I heard he was a left seater in a widebody and doing quite nicely in his career.