This is a rather complex issue and of course is worthy of examination but not of the kneejerk scaremongering typical of organisations such as Natural News you quote. The problem is a bit more nuanced and this explains it.
Briefly because the oral polio vaccine is a live weakened vaccine, it survives in the body whilst antibodies are made. It can also occasionally be transmitted from someone who was recently vaccinated to someone who is not immune. This problem seems to be common in areas where there is suboptimal vaccination cover. The answer is therefore not less vaccination but more and careful monitoring. My advice is to always look up a bit more behind scaremongering websites because there is a valid problem but the answers they offer will just produce the opposite effect, that eventually more children will get wild virus polio and we will be back to square one.