Critiquing from the outside and critiquing from the inside look superficially similar but feel very differ to to the creator.
Does the critiquer say "we" or "you" when critiquing the output?
If the former, they see themselves as an owner of it, and their critique is to help build it up.
If the latter, they see themselves as not an owner, and their critique by default will tear it down.
The same critiques from those two different perspectives will be received very differently.
High-trust teams feel shared ownership, and can grow from one anothers' critiquing.