I disagree with you. It has a huge effect since many people have heard about this news,
Even if you think that those involved do not know that it is a cryptocurrency, since this news was published to the public, they already know it by now. And if this kind of ponzi or scheme will increase, the adoption that you are talking about might not happen anymore
The news only pertains to those investment companies, not the whole cryptocurrency. What they will understand is that this companies are scams and the name of the companies will get tarnished, not cryptocurrency or specifically Bitcoin. SEC only warns about those unregistered or illegal businesses. It's not like illiterate to cryptocurrency will understand what Bitcoin is or cryptocurrency is anyway. Investment scams are pretty common here in the Philippines, having cryptocurrency involve means nothing to people who doesn't know what cryptocurrency is.
If they were to be guided and educated about simple things, people will understand that cryptocurrency is not a scam or something like a ponzi scam.
The news that the OP mentioned is a website that only crypto enthusiast or at least investors will go to anyway. Take note, what the news was talking about are illegal and unregistered business. The title of the article is just misleading. Read the actual source.
Also, only few will get to see this company anyway. This type of companies are not really advertised well to the masses. Most will just stay away from this kind of investment, even if cryptocurrency is involve or not.
Adoption will continue to rise as Philippines is a crypto-friendly country but is strict against fraud and illegal businesses. The country accepts any crypto related companies as long as they are legal and is registered. You might not know but there are stores, cafes and other businesses that accepts Bitcoin as payment for the public to use in the Philippines.