I'm going to try one more time and then I'm going to ignore.
A lawsuit is a process. Best visualized as a series of hurdles that you must clear in order to go forward and eventually wind up in a room with lawyers in front of a judge. Most of the early and even some of the middle hurdles are just process that don't require a lot of billable time from a lawyer to pass. They're just routine. But those early hurdles are where the vast majority of lawsuits die! This is mainly because of standing. If you can't get past standing, you don't have a lawsuit. Now, if someone is really really mad and really wants to get at someone else and starts filing lawsuit after lawsuit that won't clear standing then they run into a wall called anti-slapp. And now they're in trouble because anti-slapp can fuck you up. Most lawyers won't go anywhere near anti-slapp.
That's why all of these theories just don't matter, they are not possible under the law.
While a lawsuit is indeed a process, standing is generally not the reason cases are dismissed, and it's certainly not some automatic procedural safeguard that doesn't take up billable hours. In many states, lack of standing is an affirmative defense and the burden is on the defense to show that there is no standing. And the federal courts have been increasingly likely to remand cases that lack standing back to state court.
The reality is that all legal action is time consuming, and thus expensive, and that's why the vast majority of cases are settled, many before a motion to dismiss is ever submitted.
edit: I want to add that anti-slapp laws apply to a narrow band of actions, usually relating to lawsuits about someone's speech or municipal procedure, like zoning permits. Furthermore, anti-slapp laws can't change the elements of standing, which come from the US constitution. Instead, anti-slapp laws try to cut down on frivolous action by pausing litigation at discovery, which is the most costly part of a lawsuit; or by allowing courts to grant attorneys fees to the defendant with broader discretion.
As a reminder, access to the courts is a fundamental right in the United States.
