This is a very good change in my opinion.
The few tiny complaints...
... about the UnfinishedBusiness-v25.zip's content I have...
... are that the .tp2 file is outside the mod folder(ub).
Well and that there's two "Thumbs.db" files in the archive. One in ub/yoshimo -folder and another one in ub/anomen -folder. They are likely marked invisible on your computer, so you have to set them and all other hidden stuff visible in the Folder and Search options, and the files are reset there every time you start a picture editor that uses thumbnails to quick load stuff(Photoshop, Picasa ...).
Yeah, I am nitpicking stuff.
Ouh, and I prefer the .zip's too, even if I pack all my stuff to .rar's... cause I forget to flip the switch. The size factor is far smaller than the compatibility. Especially with computers outside the home computer usage.