Was R. Roth opposed to making an eiev in BP? Yes, no one can deny this. Did he refuse to sign on the same page as the others? Yes, he wrote his own letter. Either way, in regards to all other issues, only Satmerers llisten to him. Both Satmer Rebbes strongly oppose the eirev. So to who exactly is his psak applicible for? His chasidim and talmidim. Not a large amount.
How many people follow R Hershkowitzs psakim?
It’s pick a your heter deal