Your right none have a live drummer. 
I have seen them live twice though & the drummer was no machine.
All the songs my daughter has been involved with they recorded in her apartment in NYC no studio at all was used most was done with a computer & the new smart telephones they have now. The guitars are all recorded live I know that she has 4 of them that I lent them or have bought for the band to use. Except the one in the video.
She is a new addition to the group after some line up changes. The original line up just got out of a contract with some people that basically was using them as a tax write off, so that is why the big gap in time from the first video to the next. Once they get picked up & get actual studio time I think they will sound a lot different. I think my daughter has about 40 songs written on her own & the other two would between them have well over a hundred.
I have only heard a few songs myself & frankly I don't think they have released their best stuff yet.
The fret noise on the guitar was a dead giveaway.

The inorganic, implacable cadence of the drums was in stark contrast.
Again, I'm not knocking the music style or quality I just prefer a real, live drummer.
That being said, I feel that the time correction and pitch correction that can be accomplished in the studio is crap, also.
It ruins the organic nature of the music (unless it is intended to be electronic in the first place)