Ok, that could be the reason but I'd had appreciated if they were honest to tell us, the people that (used to) use Skype for work "thank you, we don't want you anymore, go find some other tool."
Note that Skype has now split into "Skype for Business" (whic is it's own form of weirdness in Office 365) and then normal Skype which is for the family/individuals.
> In the first half of 2015, the next version of Lync will become Skype for Business with a new client experience, new server release and updates to the service in Office 365
