CTAPIBaseManager对象的dealloc调用问题

[TouchFriend]

当viewController死亡后，CTAPIBaseManager的dealloc并没有如期调用，需要等到请求完毕时，才会调用。
下面代码的闭包对CTAPIBaseManager对象进行了强引用，所以没有如期死亡。这也跟旧框架RTNetworking代码不同，现在是这样设计的吗？

CTNetworking代码：
NSNumber *requestId = [[CTApiProxy sharedInstance] callApiWithRequest:request success:^(CTURLResponse *response) {
[self successedOnCallingAPI:response];
} fail:^(CTURLResponse *response) {
CTAPIManagerErrorType errorType = CTAPIManagerErrorTypeDefault;
if (response.status == CTURLResponseStatusErrorCancel) {
errorType = CTAPIManagerErrorTypeCanceled;
}
if (response.status == CTURLResponseStatusErrorTimeout) {
errorType = CTAPIManagerErrorTypeTimeout;
}
if (response.status == CTURLResponseStatusErrorNoNetwork) {
errorType = CTAPIManagerErrorTypeNoNetWork;
}
[self failedOnCallingAPI:response withErrorType:errorType];
}];

RTNetworking代码：
#define AXCallAPI(REQUEST_METHOD, REQUEST_ID)
{
__weak typeof(self) weakSelf = self;
REQUEST_ID = [[CTApiProxy sharedInstance] call##REQUEST_METHOD##WithParams:apiParams serviceIdentifier:self.child.serviceType methodName:self.child.methodName success:^(CTURLResponse *response) {
__strong typeof(weakSelf) strongSelf = weakSelf;
[strongSelf successedOnCallingAPI:response];
} fail:^(CTURLResponse *response) {
__strong typeof(weakSelf) strongSelf = weakSelf;
[strongSelf failedOnCallingAPI:response withErrorType:CTAPIManagerErrorTypeDefault];
}];
[self.requestIdList addObject:@(REQUEST_ID)];
}