Even if that’s true, what are you going to do about it?
Say you do a whole lot of research, and conclude that loosening regulations x, y, and z will not impact safety in any measurable way, and will substantially reduce costs. Even detractors with scientific credentials agree this research is solid. Best case scenario, here.
NIMBYs will still kill it. What you just did is hand them a way to say “they are cutting corners using unproven methods to let their investors line their pockets at the expense of the lives of their workers and everyone who lives around it”.
They may be wrong, but their arguments in front of a government body can still be persuasive. They don’t have to be right, just vaguely plausible to people who aren’t experts. That will be enough to kill it.
You can’t beat NIMBYs by having the best argument. You need to plan around them. Don’t hand them a weapon before the fight begins.