Blocker entities are purely for "bypassing my local laws and country from make sure I follow said laws".
Sure, I understand the appeal - it's the equivalent of hiding a bag of cash somewhere and having a trusted third-party provide the location to whoever you want after your death. No laws, no lawyers, security for your wishes - exactly what you want.
"Tax issues" are synonymous with "I'm liable to pay more taxes if I'm up-front, direct and transparent with my legal structure"