I believe I have read/seen/heard the same thing about the Pit Boss pellets elsewhere. The one difference is likely the Pit Boss Competition Blend.
I long while back I found info on the Pit Boss Competition Blend that had it at 50-60% Maple and then even parts of Hickory and Cherry. It is a mild flavor but good flavor. I usually supplement it by going 50% Comp Blend and 50% pure Hickory and that kicks it up quite a bit.
The competition blend seems to always be available at Walmart for a good price and I use it as my inexpensive option that I can blend with or do double 2 row smokes from my
AMNPS with it.