Clarification - I was actually talking about whether LMCE implements it. It isn't relevant that Windows uses it for resolution, if the LMCE core never responds, as the resolution will still fail.
Windows will only use NETBIOS broadcast resolution if the DHCP Node Type is set correctly. For instance, if the Node Type is set to p-mode it will not use it at all and resolution will always fail. If it is set to h-mode it will use it, then it depends on whether LMCE responds or not. (happily, because historically Windows name resolution was so unreliable, most DHCP servers default to h-mode, to cover this.... however that is by no means guaranteed these days, and most people wouldn't have a clue what the Node Types are, and most broadband routers' DHCP systems do not expose that config setting to change it, anyway!)