first at all, there is no real jurisdiction you can compare with seychelles, because all the others are depend on US rules, whats much harder.
second, a lot of banks open now their mind and specially with corona,︀ there is many ways to open now remote
third, we dont open bank accounts, ist︁ not a promotion, its a solution for just 29 €, no real profit with that︂
fourth, blacklist isnt and brings not any problems to a seychelles company owner because no︃ sanktion are never used by the EU, and its always a up and down with︄ their blacklist since years, his passport maybe its maybe a problem