Yes. Well, I wouldn't see.... Those who genuinely and sincerely support President Putin are still very numerous, if polls are to be believed. Their confidence would not be rattled based on that.
You're absolutely right in pointing out the symbolism of the fact that it was in his hometown and that it was when he was there—whoa. He was there for a meeting with Lukashenko on that day, which we were talking about earlier. The typical Putin supporter—again, of which there are many—would simply view this in terms of the fact that as strong a leader as he is, he's not superhuman, and they would be confident that he and the regime he leads are continuing to do everything that is necessary to prevent such incidents in the future.