Very interesting data and absolutely, we can't forget that even if we don't see a particularly strong tropical system wind wise there could be big and far reaching impacts from rainfall.
I'm guessing that early and late season will probably be most favorable for TCG because I think tropical waves are going to have an extremely hard time during peak season to survive the trek west. In the eastern MDR they are going to find a profoundly stable and hostile environment, and any that make it to the Caribbean will get ripped apart by shear. Any trying to scoot north of the Antilles are likely to run into big TUTTs ripping them apart. Waves will develop, but it's going to be uphill to say the least imo.
I kind of think CAG will be the most favorable mode for TCG this year. We'll see.
Another important point--it doesn't even need to be a high end Nino to cause major issues basin-wide. The SSTa tell a lot of the story. The MDR is cool (remember when some thought it would never cool again haha) and the orientation doubles down on stability/subsidence issues we had even during the highly active years recently.