API full-text search of body tags in comments & identifications and return observations

Help please?
Why does this query give me only the ONE result??
I have left hundreds of ‘Supporting ssp’ comments, before iNat updated to plant+ssp=sp yesterday. I would like to find those obs and withdraw where I no longer need to ‘support’ them against iNat.
https://forum.inaturalist.org/t/leading-subspecies-ids-should-change-the-obs-taxon-like-leading-ids-of-other-ranks/139

https://www.inaturalist.org/comments?utf8=✓&q=supporting&commit=Search&mine=true