New entry into crypto is seen. The count increases everyday. The media and people in the crypto community are the main reason behind increasing of investors. More ICOs are entering. Even small investors who are able to buy cheapest tokens. When ICO gets succeeded , the tokens are exchanged into fiats.This increases the exchange percentage. The hit would have been last December. And this would be have been another reason for more investors get into crypto community.
I wouldn't say the Philippines is a new entry into crypto, they've actually always been an early adopter in Southeast Asia, even if volumes don't match their neighbours Malaysia and Singapore.
The article is probably demonstrating what had been predicted to happen at least since last year, when countries like Philippines (whose #1 GDP is foreign remittances) with their substantial numbers of overseas workers discover it's cheaper, safer and quicker to send home Bitcoin, instead of traditional money transfers they'd been using all this while. I have heard some employers even arrange for workers to be paid directly in Bitcoin - with the sell prices for Bitcoin in PH quite good, this not only means they save more on fees, but that they get more bang for coin too.
Once other countries with foreign remittance #s also start making it easier to sell Bitcoin - Bangladesh for one - then we'll see these countries pick up in volume too.