Bluntly, this does not follow. What advantage did Wonder Woman actually draw from being connected to the three prior movies? Aside, I suppose, from the high likelihood that if WB rebooted, they'd not have bothered making Wonder Woman in the first place.
The 870M+ movie called BvS helped to give exposure to Gal and the character of WW, and drew awareness and interest from general audiences, and the familiarity helps the WW's awareness.
The success is mainly due to Patty, Johns, Gal etc, but it'd be unfair to wipe out ANY contribution from Gal's BvS cameo.
Like Micromind said, that's one of the reasons why Marvel used Spidey in Civil War, advertise the new version, and Black Panther, to boost awareness of his solo movie.
and yes, if WB rebooted, the first films will be called Batman, Suicide Squad (made $$$), Superman, and Aquaman/Wan will be cancelled.
The success of this film has little, if anything, to do with the previous films.
If the producer/director of the previous films hadn't pushed for a WW film and casted Gal, we might not even have a WW today, maybe not for another few years, and Gal has delivered in the movie, it's proven now, but we would not know if another actress would have delivered like her - it's an unknown factor.
Granted, WW's success is mostly due to the good people who worked on the actual film.
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Like Zant said, if WB got so scared and listened to the fanboys, rebooted the whole thing after BvS or SS (which was very profitable) - there's gonna be another few years of re-planning, hiring, negotiation, filming and the first film is definitely not going to be called Wonder Woman. His point is, WB persisted, made course-corrections, fired some people, stopped meddling with the directors, and it worked critically and financially, now we get WW, WW2 and Aquaman etc, there are calls for more female directors and employees, which is good.
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