Sure, "no reason" if literally the only problem you have to solve is deploying docker containers. While I'm not taking anything away from DO -- it's actually not a bad alternative for people who don't want nor need the complexity of enterprise cloud solutions -- it's still a huuuge exaggeration to say "no reason" when Docker containers is just a drop in the ocean (pun intended) of the scale of problems that AWS (attempts to) solve.
Sure, "no reason" if literally the only problem you have to solve is deploying docker containers. While I'm not taking anything away from DO -- it's actually not a bad alternative for people who don't want nor need the complexity of enterprise cloud solutions -- it's still a huuuge exaggeration to say "no reason" when Docker containers is just a drop in the ocean (pun intended) of the scale of problems that AWS (attempts to) solve.