AFAIK, that's not a real photo, which couldn't be taken anyway due to the nature of a blackhole.
What we're observing is kind of an interpolation of a huge amount of data collected by some telescopes on Earth. So, it's most a representation of a blackhole than a real blackhole.
The exitement is mostly due to the fact they prove the existence of something called blackhole, a gigantic one. It's more like telling ourselves "we are on the right path" than "look, this is a BH".