"Nation-states have a higher chance of successfully de-anonymizing users due to their resources."

"Tor’s privacy features become stronger if its nodes are decentralized around the world."

"If the Tor network had an even number of nodes in, say. every country, then it would take a significant amount of cross-border investigative work to get timing analysis done."

El Tor is trying to fix this by incentivizing the relay operators. https://devpost.com/software/el-tor

Up to now I continue using Tor Browser and I have not had any problems. Now with what happened in Germany, it does cause me some doubt or intrigue. But for now I will continue using it👍🙂