Greater usability equals to greater productivity!

What is wrong with the title of this post? Let me count the errors...

1. "Greater" implies a comparison, as in "5 is greater than 4." Where is the comparison?
2. Eliminating the word "greater" results in this: "usability equals to productivity." That makes no sense.
3. The use of "greater" can also be dinged because it's a long word (6 letters) and it's used to describe even longer words ("usability" and "productivity"). Not a lot of variation between the two halves.
4. As I alluded to, "A [equals to] B" is a construction that doesn't read well. The "to" is unnecessary.

The disturbing aspect of this sentence is that it is from an email from Adobe, a reputable software company, touting its new version of RoboHelp.