Reporting not supporting
Note the WTS dances around again about what interfaith is; interestingly a congregation buying a building once used for religious reasons is not interfaith because it is a "one-time transaction." "Thus, an act of interfaith is that of sharing in worship or of having spiritual communion with other religious organizations." "In working out the details regarding such a purchase, contact with the other party should be kept to a minimum and should be strictly business" WT 2002 10/15 p. 27 https://wol.jw.org/en/wol/d/r1/lp-e/2002767
Note the WTS dances around again about what interfaith; interestingly a congregation buying a building once used for religious reasons is not interfaith because it is a "one-time transaction." "In working out the details regarding such a purchase, contact with the other party should be kept to a minimum and should be strictly business" "Thus, an act of interfaith is that of sharing in worship or of having spiritual communion with other religious organizations." WT 2002 10/15 p. 27 https://wol.jw.org/en/wol/d/r1/lp-e/2002767
Keep in mind that specially selected elders can participate in a forum where other representatives of other religions do the same, it is not a debate. Most often another entity invites jws to participate, but the WTS has to approve and pick the presenter. I can’t find a link specifically to this, but I know from such jw presenters that this is how it works. The WTS carefully monitors what that jw representative will say.