The reason the PACBI BDS statement on no other land is especially important is because of its production company that has been boycotted for years before the movie was even made. It's true the language and the ideas surrounding the film are iffy at best, equating the oppressed and oppressor in ways that further the narrative of genocide, but the most relevant issue is that NOL accepted money from a group called "Close Up", which is explicitly an Israeli project that aims to normalize apartheid and occupation.
It's important to remember that part of the reason we even talk about these things is because Palestinians are so thoroughly disenfranchised to the point where we are expected to thank people for recognizing our humanity. Honestly, if you are not Palestinian and you consider yourself a genuine ally, you should sit this discussion out. Many, many Palestinians couch our language and demands when speaking to people about anything related to Palestine so you having a Palestinian friend who thinks BDS is stupid for doing this should realize that you definitely do not have the full context of the discussion and don't understand the nuances of how this affects us. The number of nonPalestinians who have commented on this to let people know they disagree (at best) with BDS is far too high. Some have even gone as far as to assert that BDS is racist against israelis (aka, "the Palestinians are doing reverse racism!"). If you want to read about "Close Up," you can find a written piece by BDS from 2019, following a letter signed by hundreds (!!!) of filmmakers insisting on denouncing the org.
[OK to reblog but please do not comment if not Palestinian]