I tried the archer again and... wow. I had a very rough time. Here's another video: https://is.muni.cz/de/darek/horde-v16-archer.mp4 (171M, ~26 min).
I wholeheartedly agree with the bow nerf, except for starting with 1 arrow. I would still start with 3. There are two reasons for that: 1) the bow has always been a great weapon against single targets but not really good against large hordes of enemies (until late game if you can upgrade it). So the archer had a problematic start even before the nerf. 2) I would often take the bow with the other classes because it is a good supplementary weapon for clearing the space in front of you. I especially like to get it with the wizards, because their spells hit more or less randomly and they badly need something to clear a path to run through. But if it starts just with 1 arrow, it is useless in this regard. And I think we'd like to encourage various mixed builds at least a bit.
By the way, sometimes if the bow is fired at an enemy which is right in front of you, the arrows fly right through the enemy but they deal no damage. I never noticed this before, so it looks like it's a new bug. See for instance 00:53 or 05:16 in the video.
Finally, thanks for all the little "quality of life" improvements!