From the looks of that video, the atheist “services” resemble the cracked “emerging church” services that various protestant denominations run, originally to appeal to Gen X. I think that that FAD is beyond its sell-by date.
If you don’t believe in God, you might as well sleep late on Sunday morning, have brunch, and read the newspaper. No need to clean yourself up, get dressed, and drive somewhere. Phooey!
It’s actually good for believers if they establish their church. Because they want to make their religion the state religion, and it will be harder to do so, if they acknowledge it’s a denomination, so to speak.