SecondLife,
Sorry for the delay in answering again.
I am assuming the insulation panel veneers are of low permeability. I suggested the foil tape (4 inch wide perhaps) be used to seal the gap (and wood inserts) between the foil-like insulation and the aluminum studs. I believe such wide duct-tapes are used to seal foiled commercial heat ducts. One wide tape might bridge entirely across the aluminum studs and seal both adjacent insulation panels.
However you are likely correct that the adhesion of interior wood panel lining would then be subject to the least adhesive product, either tape or panel adhesive. One way to insure this would not be a problem would be to use narrower foil tape on each side and leave a portion of aluminum stud face exposed.
In cold weather, usually humidity aggressively accumulates in any cold crevice it can find, but if the weather is mild, it is much less a problem. It does not sound like your application is in much danger. I do often mention the humidity consideration when I comment on an unknown build because it is often overlooked in cases where it is definitely needed, including almost all RV manufacturers.
It is always a pleasure to receive such kind and patient replies back, as you have done. Thank you.
Wes
