It isn't a money problem, but a staff problem. They've gone on record to say this a number of times, that the reason they can't do everything they want to is that they require sufficiently talented staff members with enough experience to maintain 14's quality bar, which isn't the easiest thing to do.
A good example of this is how they hired some new battle content designers, and they were specifically the reason we had an expansion (Stormblood) full of super lengthy phase transitions in the majority of trials, which the majority disliked. It took them nearly 2 years to break this pattern with Seiryu's release, with Yoshi himself commenting on the fact in a Fan Fest Q+A while promoting Shadowbringers.
Throwing more money and staff at a problem doesn't fix anything, it's a heavy handed approach a lot of places employ, which usually only serves to harm the overall product.