OTP also takes into account athletes with potential so while diving had a poor Olympics, they're still one of the strongest teams for Canada, especially now that the men are on an upswing. They may suffer cuts because they were getting a lot of money for a relatively small team, but I don't see it being a whole lot.
Tennis is an interesting sport where most of the money goes to training young players rather than going to our top players. Golf is sort of in the same boat. OTP's mission is to increase the medal count at the Olympics so in that way I can see those sports receiving less funding, but if they want to encourage/inspire people to take up sport, I can see why they may keep the funding.