From the same "Play At Home Initiative" blog post:
Independent developers are vital to the heart and soul of the gaming community and we understand the hardships and financial struggles that many smaller gaming studios are facing. With that, SIE has developed a fund to support them during this time. We have earmarked $10 million to support our independent development partners. More information about the fund, including participation criteria, will be made available soon.
During these days of physical distancing, fans have turned to gaming for moments of respite and enjoyment. At Sony Interactive Entertainment, we are privileged to bring this much-needed entertainment. We know this is just one small step and we are thankful to be able to offer this support to our players, our communities, and our partners.
Pretty awesome of Sony!