stick with a real farrier - they are experts in things like laminitis etc. there are many barefoot trimmers that are horrendous but they also don't learn physiology the way a farrier has.
They might learn it but I've learned 100x more physiology, diet, everything from my trimmer in a few months than in 15 years from any farrier I've used ! (even the good farriers who've done a good job on hooves have been almost non existent in communication or advice about diet, physiology etc). Have to repeat the 'it depends on the individual' thing. good farriers are good, good trimmers and good.
Also it depends when they did the learning, some learned before the advent of mobile x rays and scans which have led to massively more info about what's going on inside the hoof and leg. Thankfully this has meant that horses with navicular are no longer always shot as Incurable and heart bar shoes are no longer the default option for lame horses :-)))
The ideal is a farrier (who has the years of training) who is also barefoot friendly. But in the absence of that, owners should judge by results for their horse.