It's a fairly strong statement that despite a lot of studying, no evidence of any meaningful benefit for weight loss, and no benefit at all for CVD is found.
There could be other benefits, of course.
In fact, personally, I tried IF and what I found to be the greatest benefit was sleeping better. All I really have to do to maintain that same benefit is stop eating a couple hours earlier than I did before IF, and that's ... if we're being honest here ... that's long and well known good advice: don't eat near bedtime. For me it just didn't click that it meant don't eat several hours before bedtime as opposed to say, 30-40 minutes before bedtime.
Anyway, it's not surprising to me that little benefit is discovered so far from IF. It is an interesting idea, but, not much of a mechanic associated with it to explain any benefits. Most aspects of our metabolic processes do not work timeframes below a few days.
Actually, the parts that DO work on short time frames related most strongly to the health outcomes they stated could not be judged by the studies, including glucose impact. So I guess cross your fingers that in the future it can be shown that IF helps glucose management and reduces diabetes risk/impact.
There is no evidence from this trial to refute the null hypothesis, which is to say there is no evidence from this trial that IF provides any protection from CVD.