It's both good and bad. It's more proof that at least some life experiences can produce heritable traits - typically called Lamarckism, and long considered a discredited contender as an evolutionary theory. Whether these traits are good or bad depends on the life experiences I suppose.
It's a bit debated whether modern epigenetics vindicates some elements of Lamarckism or not. Or at least it was a debate in the 2000s; I haven't followed it recently. The consensus is probably no, but the question isn't entirely obvious. Some books by Marion J. Lamb and Eva Jablonka are probably the best-known arguments that results from epigenetics pose a challenge to the gene-centered neo-Darwinian account of evolution, and have stirred debate. One response among many, taking the opposite view, although in a fairly nuanced manner: http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.372...
