I tell you what. If ATC says there was sparks and smoke and the tail contacted the runway, I don't care what QRH says, I'd be returning to land weather permitting at the departure point or a suitable alternate with engineering support.
The safest thing to do is to get it on the ground and inspected. If you continued and something was amiss constituting some form or emergency, the first question the investigators and company will ask, is why didn't you return to land....
Coupled with the recent wing BBQ and not punching the slides out I wonder what is going on. Yes both events went their way, but what if it didn't?