Thank you for your interest. Yes, it would be sensible for the various Church of God organizations to pool our resources from a practical point of view. It's possible that we will be able to do that again one day.
Of course, there was a time when most of the people who make up these organizations did pool their resources, when we were members of the Worldwide Church of God (WCG). God did a powerful work through the WCG, which at one point was the largest purchaser of television airtime for religious programming. (In the days before television, the Radio Church of God, the parent organization of the WCG, was one of the largest, if not the largest, purchasers of radio airtime for religious programming.)
The circumstances that led to the eventual breakup of the WCG caused people to leave that organization at different times over several years, resulting in the creation of several offshoot organizations. The breakup of the WCG also caused a great deal of emotional and spiritual turmoil for Church members.
We in the United Church of God are committed to doing our part in healing any breaches that exist between other organizations and us, as well as between individuals. We expect God to continue to do a powerful work of preaching His gospel through His Church.