Honestly, I don't think the Golite Peak is being geared towards the uber UL niche backpacking market that frequents this forum, although I think several may find a place for the Peak in their gear closet anyways :) It is definitely a multipurpose pack intended for a variety of users/applications, the pack volume and design seems perfect for peak bagging, overloaded day hikes, UL weekends or more, snowshoeing trips, whatever...
As a mainstream lightweight outdoor company I think the fact that Golite is increasing their sustainability, and is pushing the envelope in recycled materials/fabrics in much of their new line of gear, much like Patagonia has for years is of great merit. The extra ounces gained in using recycled materials personally for me is a non-issue. The volume on the Peak is much more manageable for dayhike usage than the Jam2, essentially the 36L Peak can easily be decreased to a sub 20L pack or less utilizing the Compaktor system and cinched down further with the 4 side compression straps. Bonus feature with the Peak, don't need the hipbelts, don't take them, at least they're included. I find the hipbelts on the Jam2 to provide some stability and comfort, but isn't always necessary, now you have that option with the Peak without having to literally cut them off. It seems that the Golite Peak is to the Jam2 as the MLD Prophet is to the Exodus, am I off here? However, no one seems to be finding that to be a pointless reiteration on behalf of MLD.
The MLD Prophet comes in at $170 base price, non-recycled materials, no bungee feature, no hipbelts, no hydration sleeve, all additional options you have to shell over money for on top of the base price/weight, this is going to bring the Prophet within a few ounces of the Peak and much more in cost. The Peak also doesn't leave you with bare Dyneema against your back on hot sweaty days, which is most of the season in NM for me. Don't get me wrong, I like and own MLD gear and think supporting the smaller guy is the way to go if you can afford it, I just think the Peak is being prematurely cast aside as another Golite "mistake" on behalf of some of the scrutinizing BPL members.