An explanation for those not familiar with UK education:
At the moment, IT and Computing and similar GCSEs/A-levels (age 16-18) are considered soft subjects and not accepted by many universities, because they only teach Word and Excel and programming MS Office databases in VBScript. Not teaching the fundamentals of IT like A-level Physics teaches the fundamentals of Physics.
What this seems to be proposing, ignoring the irrelevant headline, is adding a 'Computer Science' A-level that would begin to teach real programming and real system design; one that leads on to the university courses in it that actually gain access to high-paying, economically valuable jobs. Such an A-level would have to draw on A-level Maths heavily, unlike current options, because high-level Maths is essential for most real IT jobs.
It's a very good idea, since UK university admissions are heavily based on A-level subject choice and grade, so exposing more people to CompSci before degree-level may help them choose their career. Programming is a great way to just understand computers better in general ("why is it doing this?" kind of thing).
The stuff about games seems tangential to their actual point of UK IT education needing fixed.