What's the Right Balance in Education Between Local Dialect / Tagalog / English

I just ran across this website: http://mothertongue-based.blogspot.com/ - it raises the question (and answers it!) of how to balance the language of instruction between the local dialect and other languages.  One interesting point is that the effectiveness of learning English isn't necessarily increased by more hours, if those hours aren't efficient in the first place.  Indeed!