This is not a surprise to me at all. Organic cotton tampons have been around for year available from H&B. They never caught on because
a) if you have ever tried them- they lack the absorbency of tampons, they don't expand in the same but sort of just become full, wet and more prone to leakage so not great for heavy flow
b) organic tampons were more expensive and normal tampons were already more expensive than they needed to-be due to tax.
Same with pads - you can get organic ones. Those actually aren't as bad.
Not sure if this is coincidence but my flow got lighter when I switched more to pads.