Why RedisQues spreads redisAPI.send() call to several threads?

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Why does RedisQues spread those 'redisAPI' calls to several threads in QueueStatisticsCollector? It should be just fine to call 'redisAPI.send()' directly from EventLoop. Unluckily, original code does not tell us anything about this.

IMHO there are TWO ways to resolve this issue:

• Make sure redisAPI never ever blocks the EventLoop thread so we can just remove 'executeBlocking()' and call 'redisAPI' directly.
• Explain, AS A COMMENT, DIRECTLY WITHIN THE AFFECTED CODE, in an UNAMBIGUOUS way, WHY RedisQues has to use 'executeBlocking()' in this specific case. I guess maybe Is Vertx Redis API blocking? #165 could be the reason?