Based on the community feedback, the Tokina 16-28mm f/2.8 appears to handle flare reasonably well in dark scenes with artificial point light sources. One user reported using it frequently for long exposures near streetlights without flare problems, which is encouraging for candlelit interiors.

However, the same answer noted that flare can be more problematic in direct sunlight, so its flare resistance is not perfect in every situation. That suggests the lens may be acceptable for your church and candlelight use, but you should still expect some care in composition when very bright light sources are in or near the frame.

In short: for low-light scenes with point lights, there’s no strong evidence here that the Tokina is especially flare-prone, but it may be more sensitive in harsher lighting such as sunlit scenes.