Hello Gary,
My name is Svetlana, I’m a sales at Aurigma team.
The paragraph 2 depicts the difference between Trial, Standard and Multiple Licenses. When Standard License in opposite to Multiple License scenario, you, as a single developer, are allowed to use either one desktop computer or/and a single server machine to build your solution, otherwise it's considered as a Multiple License.
The sentence you mention is applied to any machine that is in operation of a developer. In your case, you're operating two machines, that is desktop and server.
Thus, you need to purchase a developer license in addition to a server license to develop a server application. It is also stated on a product page where you made the purchase.
Quote:A developer license is required per each programmer/QA specialist in a project
In this case, I should say that yes, all the users that needed a server license to develop a server app purchased a one more required license.
Thanks.