Not really. It is a complete myth that a boot provides any ankle support whatsoever. There was a study a few years ago that showed risks of ankle injury in boots was higher, likely due to the weight.not convinced by exclusively taking trainers - if you are on a monitored marathon route fine,
If you are in an autonomous party and the route may end with a tired descent at dusk, involves any scree descents or scrambling, having some ankle support, that boots offer, helps,
grip of a more rigid vibram sole is reassuring - I have some zamberlan's.
e: 700g each apparently
To reiterate what i said previously - i have done many multi-day trail races in the alps covering 370km, 29k m climbing on mountain paths and half the time traveling at night (sleeping 1hr every 24hrs, even if in the daytime).
most of my trail running shoes have a vibram sole or something better, that isn't really an argument. You can even get some with built-in spikes (la sportiva Blizzard).
700g each is twice as heavy as a trail runner
where boots are required is when front pointing a 55° ice field with a pair of 14 pt crampns, dual ice-axes in hand, leading to a mixed ice-rock climb at grade 5 etc.