I don't think research would be the biggest factor to consider in gambling. Things do happen more often thru luck and factual basis won't really do that much especially if you are not lucky that day. I do get it, one should have an insight about something to know the odds as well as advantages and disadvantages, aiming to get the win. But we are all familiar with how this luck occurs in gambling. Perhaps you have a favorite team in sportsbetting but for some reason, the opposing team managed to get the win.
Surely sometimes unexpected stuff will happen, but most people probably rely on something more than a random pick in sports betting anyway. And it seems to be that people who know their sports well tend to be better at sports betting than people who have no clue about them. And what matters is the statistical significance of knowledge and research, not the outcome of a particular bet or a number of bets.
What do you follow when you are betting on sports: is it the odds or your knowledge and experience? Or maybe you're one of those people who bet on the favorite team or perhaps follows a gut? Do odds even matter to you? If yes, how important are they for your final decision?
Not at all times, I rely on odds when I am uncertain about the matches, because odds are a general consensus of experts majority of bettors, sometimes they are reliable and sometimes they are not, it's good that you do your own analysis and check if the odds and your research shows the same winners.
So when you aren't sure about the match, you'd trust the odds more than your intuition? And how about the third option of just not placing a bet if you aren't sure?