Yay or nay?
If you don't have a whammy bar, is there really any benefit?
Yeah....but you're talking about a trem setup...where the roller bridge is needed.
For a non-trem guitar, there's really no benefit to using a roller bridge...other than it might feel better for your palm, but you then lose on the sustain/tone/bends side of things.
I think I fixed that for you. (???)Any who.. I've never had a problem with strings popping out.
JM/Jaguar-type guitars I think the saddle itself is a little closer to the body to begin with.
...I can set (or fine tune) the string width and placement.
The rollers are on a screw-shaft, which makes them much narrower, = lots of width range.The ones I've seen/used are all set in one place by the manufacturing...no side-to-side adjustment, just back to front for intonation.
I have 4 vintage Hagstrom Swedes from the mid-'70s that are fixed bridge, but the bridge allows for side & front saddle adjustments.
Like this one:
The later stuff and the reissues all use the standard type of fixed, which only gives you front/back adjustment.