To be perfectly honest none of the drugs have received the normal testing. So in that regards we are all being test subjects even with the doses of the same vaccines. Studies in Spain and the UK show very effective results. Canada has approved mixing and matching. Now does that mean that every combination in every order has been tested. Probably not. However the fact that this woman died "may" be just coincidental to having the Covid injection. Perhaps the response was unique to her, or the fact she had a blood clot may have been caused by other factors. We just don't know.
Hard to understand how you came to that conclusion.
Ten times as many have been vaccinated in Phuket, vaccinating the young and healthy in Phuket at the expense of the old and vulnerable in the rest of Thailand, and some elsewhere will undoubtedly have died as a result, and the measures to "protect" Phuket have been draconian but despite that Covid numbers are still rising.
At the same time, despite international arrivals having to be fully vaccinated and tested before arriving, the percentage testing positive and arriving infected is still considerably higher than both the Phuket and national averages so there's a net importing of Covid.
How can that be doing "relatively well"? Relative to what - planeloads where every passenger tests positive?