The only reason to compare coverage of the BLM marches and Capitol riot is, ironically, in service of propaganda that seeks to portray both events two sides of the same coin. Why not compare the Capitol riot and, I dunno, coverage of an indoor sport event? It would be a more accurate comparison but it wouldn’t serve a partisan political purpose, so it’s not done.
And “release at the same time” is just kind of funny as accusations go: an event occurred. Multiple news organisations wrote it about it shortly afterwards? Some even publishing stories on the same day? How very, very suspicious.