Having repaired over 70 tanks at my LFS, and collaborating with engineers from All Glass aquarium- there is a margin or closeness to the seam that makes the tank weaker under water pressure and its your tank. By all means , fill it if you wish and you will be the first to know. You say its no where near the seam- You are going by silicone and not the actual joint where the two pieces of glass meet.
You would know by asking yourself- If this is on display at an LFS- would you buy it and set it up?
Its unfortunate and is a risk. Disasters with water seem to happen at 3am when we are sleeping. Its your call.