This is 100% factual. And for me the extra rub is basing value on FIAT exchange rates doesn't even begin to address the inherent issues with inflation etc. So even more of a slippery slope.
How I started looking at "value" was in relation to FIAT coupled with % of growth relative to FIAT inflation, so technically as long as I'm beating inflation I consider it profit.
I don't know if this is faulty or not or whether it will change in the near future. But it makes sense for me.