I can not agree with you more. Skype for business has is an unmitigated disaster of a piece of software and whatever team is in charge of it needs to be fired or relocated so that Microsoft can start over on it.
Skype for business is so insultingly bad that it is pretty much the only piece of widely used software that I am willing to claim that given a month I could write something far better.
Agreed. I've worked at two places now that have undergone the switch and it was worse in both cases. Not only the software being worse than its 2007 predecessor, but the upgrade itself broke all sorts of internal tools and functionality, thanks to unnecessary changes to the registry and SFB's desire to put add-ins in everything (IE, Outlook, Firefox, etc).
Skype for business is so insultingly bad that it is pretty much the only piece of widely used software that I am willing to claim that given a month I could write something far better.