I don't know why you say any of the features in vim are hard to figure out. In addition to the (possibly esoteric, but also logically chosen) keyboard commands, there are MENU OPTIONS for all of this stuff
- Tools->convert to hex
- Edit->Find.. (or Edit->Find and replace...)
How is any of that "too hard to figure out?"
Also, vim can be scripted with python (and probably other stuff) in addition to the vimscript. And user tools only need to be dumped into the plugins directory. Some authors even package them in installers for different operating systems!
If you don't like the modal editor, use gVim Easy (that ships with vim). Or use cream (which is quite good for beginners to vim).
Yes, vim has other hidden secrets that are harder to figure out & those who want to truly master it may want to refer to the help system. However, for the purposes of THIS review, the author could have just quickly flipped through the different menus. If he couldn't do this, what other editors did he give a half-hearted, inaccurate try?