I'm sure Roma meant the difficulty of a player simultaneously commentating on their own game (he mentioned this before). I tried recording a VOD with commentary as I played... it's a complete mess - actions are really automated, and for a few minutes of gameplay, there are only a couple of phrases at most, speech simply can't keep up with thought - it's not possible to comment on a real game with a time limit on the fly (either there will be very few comments, or there simply won't be enough time to do everything as planned). If you speak out every action, you need to set unlimited turns and just keep talking... it will take a lot of time, and few people will go for it. So, either commentary by another player online, or by yourself, but at a different time - the difficulties of these options have already been described.
Added 8 minutes later
I don't see a problem with commenting on Alik's game. It doesn't require any special knowledge, just good concentration, playing without making stupid mistakes or tilting.
P.S. In general, I would really like to see a stream of the final with Maretti with good commentary
Зима 2011-12.