I do blame Microsoft, I have tested WS10 and 11 (all builds but the last) on Windows 10 (all builds but the last) and *never* has Workstation performed flawlessly. Either the VMs closing down, caused Windows to crash completely or there were Networking Issues ...
Since MS is changing their builds every 2-3 weeks or so, it shouldn't be VMWare testing their solution on that beta platform. Now that WS is out beta, I expect more & faster work from MS.