Excellent article – prioritising solutions for private vehicles over public transport will never work as a long-term transport solution in Manila. There may be a short-term drop in the number of vehicles, but as incomes rise and more people have cars, traffic will reach a standstill.
In theory stopping provincial buses at the edge of the NCR so people switch to other forms of transport within the city can work, but as the article points out, only if the public transport system within the city is fast, reliable and has good coverage. A BRT system could achieve that for Manila, as it is really just a more efficient and better organised version of the already extensive use of buses.
Metro Manila needs a vision for where it wants to be, even if the money is not available to make it a reality now. Ad-hoc decision making will lead to chaos.