You speak the truth. I was conflicted for a bit and as soon as I put the first dab of glue on I said out loud, "I'm committed now".
At the start of my Empire collecting I did do some seam sweating on some very poor tanks but the results weren't ideal (visually). In this case I wanted to keep the tank as pretty as possible. The tank where I used glue before it was the smaller tank and the leak smaller, it worked well and I steamed it many times since.
Glueing this tank may be a bridge (or gap as is the case) to far but it really isn't all that critical as the tank I am replacing is in pretty good shape (I have a good fall back). However, if it doesn't work or hold up, I'll 100% tell myself I was stupid using glue and should have just tried re-sweating it.