Complex sentence: Cambridge's student newspaper "The Tab" initially criticized William's admission, questioning whether his grades were sufficient to attend the university, but later backtracked, noting that the course was a short vocational certification and that the university customarily admitted pretty much anyone to it.
Split into simpler sentences: Cambridge's student newspaper "The Tab" initially criticized William's admission, questioning whether his grades were sufficient to attend the university. Later its writer backtracked, noting that the course was a short vocational certification and that the university customarily admitted most applicants to it.