1) I like seeing new sports at olympics, but I guess total athletes quotas cannot rise substantially, so it allways have some disadvatages and unpopular reductions (for example track cycling - 1km time trial/individual pursuit/points race all gone). While I like olympic village idea, where all athletes from different sports are together - what is exactly problem to have more athletes? Capacity? Money?
2) Competition format in some sports was quite strange - for example Double sculls rowing - 13 pairs entered, and we had heats and repechages to eliminate just ONE pair, everyone else continued to semifinals. Was it so difficult to add few more teams (or remove one and start with semifinals)?
3) OG should be top event for all athletes - this will probably never work for some sports (and some decisions do not help that - why soccer has age limit??)
Also why there is nation quota limit in some sports? You can be number two in some sport, but you are not allowed to participate because number one is also from your country. In all individual events (and probably also in double/pairs events) country should be allowed up to 3 entries if they are among best on world, so they can fight for medals.