It's reasonable to assume that Remington has had some trigger failure's, that could happen to any gun maker. The problem as I believe it is people fooling with adjusting the trigger and doing it wrong. Reason I think that is that just to many time's it's been reported. I have several old 700's and have never had one go off on me. Yes I do adjust my own but found out early on that adjusting much under 3# will set up that situation.
So why did Remington do a recall? I think they did it to avoid a bunch of law suits. I suspect they would lose no matter the cause of the problem. So seem's to me it's a cost thing to Remington, cheaper to recall than fight a bunch of law suits they will probably loose all about money.
I got my first Mod 70 several years ago and never fooled with the trigger until just recently. I came at 5# and everything else I have is at 3#. Took it apart and looked at it and looks very simple to me. Took it down to three pounds and no problem's. Easier trigger to adjust than the Remington, but I doubt it's any better.
Now the only trigger I have I haven't re-adjusted is on a 1093 Springfield.
If you remember years ago Ruger had a problem with a blackhawk a guy shot himself with. Older blackhawk without the bar to block the hammer and he droped it, 6 rounds in the chamber. About the same time Remington had their first trigger problem. A guy hunting got back to his vehicle and shot himself in the foot with the rifle. Turned out that the guy got into the car with the rifle loaded, sat on the driver seat, pointed the rifle at his foot and started unloading. But for some reason I cannot understand he was cycling the rounds through the chamber to take them out and was closing the bolt on everyone! Never heard how that one turned out but I'd bet Remington spent a ton of money defending themselves from a moron!