The thing is that they perform a lot of original songs in concert. Neesan did one song for their first original mini album, Marin did one on the recent one. Neesan has written a lot of songs they perform in concert right now - some they even perform at H!P concerts, too. But unfortunately that's not what gets uploaded/covered the most.
It's difficult to keep up with Lovendor if you're not in Japan and/or don't speak Japanese and keep track of their activities, really. They have a lot of original music, quite a lot by Neesan especially, but on top of that all of them write even more than what ends up on the setlist.
So.
Can only hope we get more footage on youtube once their tour is over.