Party optimisation philosophy

[Waazraath]

For this reason I feel that a stealth capability on at least one PC is very important, and ideally you want a whole-party stealth capability and Pass Without Trace. (But you can never have everything you'd ideally like to have.)

But this one really isn't hard to achieve imo; pass without trace is on plenty of spell lists, and available as a racial feature through some classes. The only difficulty is if you also want a disadvantage ging armor wearing person in the party.