I don't have as many years of fishing the bay as some, but a look at tournament weights from Long Point vs. elsewhere on Erie is telling. Lake Erie overall is a world class trophy smallmouth fishery - LPB doesn't keep up (still a great fishery, though).
The closed season and sanctuary are supposed to prevent disruption of the spawn but the reality is that the smallies are sometimes still guarding fry when the season opens. Some of those "really good" years fishing on the opener are the result of a later spawn. Ironically, this probably leads to much higher harvest numbers (so much for protecting the spawners).
The reality is that if a bass is coming home in a bucket then it really doesn't matter if it was spawning or not. It takes very few successful nests to provide enough fry to sustain pop. numbers, but an adult bass has overcome remarkable odds to reach even 3 lbs. IMO we focus too much on protecting the spawn, and not enough on promoting C&R (especially of above-average sized bass).
IMO the same is true for pike. The bay has fantastic spawning habit for them, forage and access to cold(ish) water. Yet a 40" + trophy pike from the bay is a rarity (or I'm just really bad at finding them

).
I like a fish fry as much as the next guy including both bass and pike. However if we want to see improvements in our fishery then releasing more big bass and pike would help. The little ones taste better anyway, not to mention the plentiful sunfish, rock bass, perch, walleye...