I think the real problem here is that the author is assuming the Google Bot somehow gets special treatment. Why are you concerned that the bot is sending SQL in

I think the real problem here is that the author is assuming the Google Bot somehow gets special treatment. Why are you concerned that the bot is sending SQL injection attacks? The same thing could be done by a regular user. Are you defending against regular users? If so, then you're defending against Google bots too. Now if the problem is that your firewall is blocking Google bots, well then you're going to have to let them through if you want Google traffic. It's unfeasible for Google to fix this on their end. Your application should be secure from SQL injection without the need for a firewall anyway, so it shouldn't be a technical problem having to make an exception for Google bots.