Can't join a TEAMS LIVE EVENT from a TEAMS BOARDROOM DEVICE

Microsoft works with a number of hardware providers to produce Boardroom Devices. Providers like Poly, LifeSize, Yealink, Crestron, Logitech and others. These providers build the hardware, and Microsoft provides the TEAMS Software for the device. The TEAMS software on a boardroom device, is very different from TEAMS on a computer. 

TEAMS on boardroom devices are able to be invited to TEAMS MEETINGS and this works well. However TEAMS LIVE EVENTS are a different type of meeting, and the invitation process is different and does not work on TEAMS boardroom devices. TEAMS Boardrooms CAN be added to a live event as a presenter, however, if MICROSOFT runs a TEAMS LIVE EVENT like they will at the Microsoft Ingnite conference, you can't join it from a TEAMS boardroom device. This is the same issue when DELL or any large company sends out a link to join their TEAMS LIVE EVENT... you simply are unable to join it from a certified TEAMS boardroom device. 

I've opened a case with Microsoft and one tech tells me that Engineering says is it something they are working on, and then another tech tells me it's not on the schedule. It's very frustrating that I can't get a straight answer... and moreover, TEAMS boardroom devices should be able to attend TEAMS LIVE EVENT. It's all TEAMS after all...   When can we expect this?