Watched it on FR24 and it looked to be a perfectly normal manoeuvre following the lightning strike. As mentioned above, it would have been wise, just to be sure, for the crew to initiate a GA following the lightning strike to ensure all was well rather than continue that approach in IMC conditions. The subsequent track clearly indicates that ATC neatly vectored the aircraft around into the next available "slot" in the landing sequence. At no time did the aircraft re-enter the stack.
Edit: Was busy faffing whilst DR basically posted the same conclusion.