Science doesn't subscribe to narratives, it's just science and that's it, and scientists never purposefully ignore data when submitting studies. Data is just a result, whether or not it matches what you hypothesized is secondary and the quality of your data is dependent on how rigorous your study is. Ignoring data will mean that your study will never make it through peer review and most certainly will not be published. It's absolutely acceptable in science to have major studies contradict each other, all that says is more research needs to be done.
Most of the data on COVID here shows the opposite, but it wouldn't surprise me in the slightest if some study's findings are to the contrary, immune response in people is highly individualized. It's going to depend on what vaccine they had, genetic factors, and where the study is from. For example, a study done in the UK or Italy might show very different results than a study in the USA, but we would have to be wary of applying that here other than in the most general sense. We are all human, but gene mutations are highly regionalized. It's why certain populations are susceptible to certain conditions (Tay-Sachs, Sickle Cell, etc.) The Jewish populations of Eastern Europe are particularly unique, carrying all sorts of stuff that is uncommon everywhere else. I have a scientist friend who found out he was Ashkenazi and he had himself tested for all kinds of mutations. Dude totally freaked out, but we had a laugh when he found out it was a very distant relationship. Also, most importantly, at this point in time it's impossible to tell for sure which is better regardless of what studies are indicating. There simply isn't enough data out there to make a valid conclusion, so it's still best guess time. What needs to be avoided is fixating on that one study that shows great promise, when many other studies are showing the opposite.
Everything still needs to be taken with a grain of salt, we just need to adapt with whatever studies guide us towards. I remember when everyone was disinfecting like crazy, but once that turned out to be a non-factor no one does it anymore.
What I do see in all studies is a common theme, and that is if you've had COVID before you still benefit from a vaccination which reduces the odds of reinfection greatly. I would say 99% of the scientific and medical communities agree on that.