I would say it's certainly better us highlighting that with "current information" it feels lacking or if you want, lazy... Hoever the devs might have a perfectly decent plan as to how this should play out, it just hasn't been implemented yet, or is but it's hidden behind the veil of Act2 and beyond.
Or they hadn't and they are reading these threads with interest and making notes. The former is the more likely, but hey, as we don't know we can only comment based on the info we have.

I am more curious as to why we should care though. I mean, I actually usually do without Gale as I find as a Ranger it was more useful to me to have Shadowheart, Laezel and then usually Astarion (though i had Wyll along for the Goblins for his story elements). As such I breezed through quite a few of the fights or even if I did die one always survived to Rez the others, given coin wasn't too hard to come by.

So why should I keep a Mage with a rather expensive upkeep in tow? For fear that If I don't save him he might detonate within my vicinity? Whatever that vicinity is? That currently at this stage is what feels off to me. Yeah I see why HE wants my help, it's easier to procure items with help than without, but for something so dangerous that is relying on the goodness and generosity of my character. Now if HE had something to offer me in return that might tip the balance. Maybe he knows something useful, or maybe he could be a level or two higher than us (which would also feel more fitting story wise) and thus he is more powerful but comes with a downside. I have to add at this point I am not a massive fan of all characters are the same level. Why? If I always party with the same team why aren't they more powerful?

Yeah It's a game and if you neglect characters for too long you wouldn't ever take them along, but still. Meh, not a big fan.