I don't believe the call for an SBMA investigation into SPED will go anywhere, as I suspect the children of influential base officials are enrolled there.
A couple of points to consider:
Does the Tagalog requirement mean that some of the classes are taught in that language? Foreign students who will later attend high school and college outside of the Philippines need an education that is well grounded in English, not Tagalog.
If students are being admitted based upon ties of family or friendship rather than intellectual capability, this suggests that the level of instruction must be lowered and the pace of learning slowed. A truly gifted child would be stifled in such an environment
It may be that the education of foreign students would be better served at Brent or Montessori.
Lessons are primarily in English so the effected parents were dumbfounded as to why such a high importance was placed on Tagalog.
The "failure" in Tagalog was not that the students could not speak Tagalog just that they did not score high marks for Tagalog eg score of 78/100, the children rejected where all fluent Tagalog speakers but as they were fluent in multiple languages they were not as strong in Tagalog as children who ONLY spoke Tagalog. Must be the only school in the world that disadvantages children for speaking multiple languages!
Your point is very valid that as the level of education is being lowered to accommodate friends and family children are better off elsewhere, lucky that the Subic Bay Freeport has Brent, Montessori and don't forget FIRST, all excellent schools that can help the gifted children to shine.