fix: address comments

src/config.ts

@@ -210,7 +210,7 @@ export const defaultConfig = {
   enhancedDatabaseReporting: false,
   rootSpanNameOverride: (name: string) => name,
   clsMechanism: 'auto' as CLSMechanism,
-  spansPerTraceSoftLimit: 25,
+  spansPerTraceSoftLimit: 200,
   maximumLabelValueSize: 512,
   plugins: {
     // enable all by default

src/trace-api.ts

@@ -247,7 +247,12 @@ export class StackdriverTracer implements Tracer {
         // As in the previous case, a root span with a large number of child
         // spans suggests a memory leak stemming from context confusion. This
         // is likely due to userspace task queues or Promise implementations.
-        this.logger!.warn(`TraceApi#createChildSpan: [${
+
+        // Note that since child spans can be created by users directly on a
+        // RootSpanData instance, this block might be skipped because it only
+        // checks equality -- this is OK because no automatic tracing plugin
+        // uses the RootSpanData API directly.
+        this.logger!.error(`TraceApi#createChildSpan: [${
             this.pluginName}] Adding child span [${
             options.name}] will cause the trace with root span [${
             rootSpan.span.name}] to contain more than ${