I really don't think anything "backfired" at Waco. Reno was entirely too smug afterwards.
Even more, though, these events galvanized the 'militia movement' and all the incidents, Waco most of all, were a wake-up call to people nationwide, indicating Federal Agencies where power had run amok.
It also illustrated to any who questioned what had happened in any of the instances just how corrupt and dangerous the Clintons were: that power could be abused here as readily as in any dictatorship, current or historical, at least on a smaller scale.
Such abuses of power were a hallmark of the Clinton Administration, and are the reason we need to guard closely against a POTUS, from any party, who has a penchant for being autocratic in domestic affairs and being contemptuous of the Constitution.
This really gets difficult when we want someone who is going to prosecute the war on terror, because we start to deal with gray areas between law enforcement and antiterrorist activity.
Sure, there were those who bought the MSM promoted official line hook, line, and sinker.
There were (and continue to be) people who will not and do not want to comprehend the abuse of power there because they cannot/will not handle it. They get glassy eyed and tune it out.
There were the 'true believers' who decided this was a 'good thing' to get rid of those 'evil people' without any thought to what supposed evils deserved this sort of treatment.
And then there were those, roundly demonized by the press, who organized for the purpose of mutual defense against any criminal actions taken against them.
If anything, this illustrates that the label of "domestic terrorist" is just a breath away from being used to define any group the press can and does routinely demonize, including Christians, gunowners, and people who dissent with the policies of 'diversity', to name a few.
We live in dangerous times for the Republic even yet, and perhaps more so than then because of the precedents which can be established sacrificing our rights on the altars of expediency and security.