Yes it is. It's supposed to have more speed and maneuverability than an Interceptor. The shields of a B-Wing. The firepower of the Interceptor and the Gunboat combined. As well advanced systems and projectors.
...which is how it was portrayed in the original TIE Fighter game.
It was then initially left out of the follow-up X-Wing vs TIE Fighter due to that level of ridiculously over-the-top power level, with the game files citing...
"Advanced space superiority fighter. This craft is too powerful to be put in this simulation. Dream on, fanboy!"
...a quote which seems oddly appropriate here. It was then toned down immensely from it's original capabilities in order to be included in 1999's X-Wing Alliance.
If the PC game developers managed to recognise that the ship in it's original incarnation was so horrifically overpowered that they a: removed it from one sequel altogether and b: nerfed it considerably in a sequel down the line, I see absolutely no problem whatsoever with FFG rebalancing it completely for inclusion within their miniatures game.




