I mean the college ask for 4s in Maths and English, which is standard, 2 5s and 4 4s.
Essentially all you have to do to be able to study A levels is have 8 passes- that's not even an outstanding grade and is average. Many other sixth forms require at least 6 6s. They've set the entry "high" so as to be accessible to average students who want to take A levels but are not particularly gifted in subjects.
Maybe the level 3 extended diploma was more for you?