Yawn. Try putting your Macs in an environment with several thousand machines in a mixed Windows, Mac, Linux, and who knows what else environment with Active Directory, proxies, firewalls, VPN, etc. Since upgrading to 10.10 myself and many others in my company have been having networking problems with our Macs. These are problems we never had with 10.9 or earlier. Or maybe you cited a trivial example with no problems as sarcasm?