They also seem more significant if they happen, e.g. I just see
REORGANIZE on height: 839127 of 839203 in the log file, which is quite a number of blocks. Can anyone comment whether these observations are a correct / typical (or an exception)?
If that is so, why is testnet more "vulnerable"? Is it because the network's hash rate is massively lower on testnet vs. mainnet? Intuitively, I would have thought it is simpler to agree on the longest chain if there are fewer nodes, but maybe that is flawed logic from my side?
FYI: I have read this explanation already, but wondering what the differences are with respect to testnet vs. mainnet.