While this is an interesting discovery and would be wonderful if true, there's a long way to go before this is considered conclusive proof. The fact that the microfossils are so similar to Terrestrial forms is indicative more of contamination than alien life.
This researcher has made some pretty extravagant claims before and the Journal of Cosmology
has published some questionable research (in fact, I believe it's now out of business). I wouldn't make any bets on this being the big one.