The aircraft fell out of the sky after engine 1 failed following a massive surge.
Engine 2 was shut down, righly or wrongly depening on what AF ops manual you read.
But the surges on no2 were worst before it got shut down than on no 1, as the fire hot gasses were much closer to it. It would have been rendered pretty useless, in my view, even it it had not been shut down.
With the gear down and only 50-75% of the normal the thurst available you were coming doing pretty qucikly. (Vzrc for gear down on 3 engines was 205knts and >300knts for 2 engines) On disassembly the engines were found to contain parts of the airframe that were melting due to the fire. Parts of the flight control surfaces were also found along the path from the airport to the crash site.
No matter what the crew did that aircraft was coming down pretty quickly due to the engine surges/ingestion and the deterioration of the airframe.
Maybe it would have flown for a little longer, but would then have come down quicker. It was due the that way it came down that a lot of information was able to be recovered from the airframe.
What would have happend if they had made Le Bourget with only 2-3 engines, possibly no brakes on one side, a massive fire, with the systems damage that it was causing....I hate to think.
Yes there are issues, but not as big as people would like us to believe.