IMHO, the structure under the panels (visable) seems to have been fully active, as flames were licking over the gutter. Venting there would create a more hazardous situation.
As to 'covering' the panels, yes that will either kill or reduce the output dramatically, but....who carries enough tarps?? We (myself & local FD) had that conversation. Another 'idae' that was thrown around was using foam, but I heard of no more comments about that.
It would be interesting if Trumpy would jump in here with his opinion, as he is/was in the fire service.
