Everybody loves FFP because the interwebs told them so. Truth is, it depends.
If you utilize reticle information for ranging and holdovers there is an advantage to FFP in that the values are consistent through the magnification range. Problem is, the size of the reticle increases as magnification increases and not all reticles are created equal, some look good in the upper end and nearly useless at the lower end or vice-versa.
In an LPVO below 6x maximum magnification FFP makes little to no sense because by the time you need to utilize reticle information you (or at least I) will be on 6x anyway. I even question FFP in a 1-10x, but I would not own a 1-10x LPVO due to the compromises it takes to make that work. If I need more than 6x, I can to without 1x.
If you are trying to shoot tiny groups on paper, or the heads of prairie dogs, @ 600 yards and beyond you (or at least I) don't want the crosshairs to cover 3" or more of target area so FFP is a no-go. If you prefer to dial, and range with a range-finder (as do I) FFP has no advantage. I prefer SFP in all my LD optics.
MPVO's are the place that I see actual positives with FFP, a midrange primary application where quickness is a requisite and wind holds/elevation adjustments must be made on the spot. Reticle design will make or break an FFP scope so pay careful attention when you are shopping. A 2-10, 2-12, 2.5-10, 2.5-15, etc I will consider FFP, but other than that SFP for me.
JMO, FWIW, YMMV, and all that
