Okay, putting the ideals of the two events aside, the fact is the police (and national guard) presence was great enough during the BLM protest to make breaching the perimeter essentially impossible, as opposed to the much lighter presence on the 6th.
I'm not sure why you ask, but this seems like a potential bad faith attempt at whataboutism. I don't support any form of rioting. I also don't think what happened outside of the White House was in any way a riot. Certainly not in any way comparable to what happened this week at the Capitol.
I ask because it makes you think and hopefully prevent overreaction. Banning apps because of extremists and poor police presence is stupid. I think these people should have been treated the same as the second day of protest where Capitol police were stationed outside after the church was set on fire. There was a lot more time to plan for these event as it was less spontaneous and had many hundreds of thousands planning attendance. I think not having a bigger police presence was pathetic and it was likely political.