That weight is correct. The same as my with Intellect 5800/60c, Tekin combo 2050. Futaba BLS351.
The "roller" weight is in the 2750 region. But there is many heavy Steel parts that can be swapped for Alu dito.

I ligtened my ECO (which is quite light) with every possible thing nearly and it stopped at sligthly above 3400. Titanium,CF and Aluminium everywhere. Those 200g was NOT worth it in my oppinion. I think the most important thing is to keep the unsprung mass weight down. Normaly the rotating mass also but with those motors I dont see any problems to get it moving.(The drawback maybe the counter rotating mass. ) The guy that bought it swapped the Alu chassie for an CF one and has shaved another 100g off.
And this is real fact without any fantasy numbers.