MTGA has 50k average concurrent players!

I have not seen anyone talking about this but in the last state of the beta Chris Clay told us that since open beta starts more than 250 million games have been played.

Assuming an average game length of 10 minutes (including also the time spent looking for the opponents, building the deck etc.) if I have done the calculations right this tells us that in the last two months the average numbers of concurrent players is around 50k.

This seems a very good number to me even if there is not much to compare it with.