To be honest I would be fairly confident that given the amount of scrutiny that the redesigned MCAS has, it would be "safe enough".
What concerns me would be any other, as yet unknown/undisclosed "features" that are lurking in the background that haven't yet been disclosed because they haven't yet contributed to a smoking hole in the ground - essentially have any other corners been cut or sub-optimal design or engineering decisions been made. I would hope that this is what the FAA and other regulators are scrutinising right now.
I would also be fascinated if a gap analysis has been done between the MAX and what would need to change, were it a new aircraft type being certified today - several people have commented that "it would never be certified today" and "it relies on grandfather certification" - so in what ways does the MAX come up short to today's expected regulations?