Clickbaity headline, but:
* Gen6 fighters, from whatever source, are probably 20-40 years out; current defense work and such work for the foreseeable future will be done by Gen4 and Gen 5 aircraft;
* If this concept aircraft is capable of Mach .6, that's 1/4-1/3 the speed of current Gen4 and Gen5 fighters; this concept aircraft is a long way from the speed that will be needed for a Gen6 fighter, and if Gen6 fighters need to be hypersonic .......