You mentioned, and even included a link to, a third party tool. When including such media, a lot of users will see that as either promoting that media or asking how to use that media. Simply doing this is enough to get users to close your question because it's a legit way to close a question.
The other part of your question that doesn't help at all is that it is very broad. We can't encompass ALL heroes in ALL pick/ban situations, there are just far too many of them. You need to narrow down what you are asking - pinpoint something such as "Should I target supports or assassins in the early stages of pick/ban".
Essentially what you need to do is change the wording of your question. If you get rid of the link to the third party info, narrow down your pick/ban question to something a little more specific, you'll have a good question.
I think this question in its current state is incredibly broad and nearly impossible to answer meaningfully. I think this question should not be reopened without further editing.
However, I don't think the question should've been closed in the first place.
In its original form, this was a question about using a "Game-specific...utilit[y]", which is explicitly allowed in the help center.