Spotters and the Press call it an explosion. I've also seen it sensationally described as an explosion and uncontained engine failure.
Professionals assess it to be a surge, possibly caused by birdstrike, and a correctly executed RTO. All told, text book.
Shall we leave it at that and leave each faction to believe what they want to believe.
Such a shame PPRuNe has to cope with such petty squabbling.
