If you are going to be using the image to print on a modern inkjet printer, and even for some of the most recent presses, their colour gamuts exceed much of the sRGB gamut and most recently portions of the ARGB(98) gamut. Therefore sticking to an sRGB workflow limits potential image quality obtainable from these output devices.
And it's not very recently, in terms of available models, either.
Here are some gamut plots (when there is text, it's in Norwegian, since I made these for a Norwegian audience).
E.g. the Epson 2200 with Epsion Premium Glossy Photo vs. AdobeRGB and ProPhoto (grey wireframe: ProPhoto, red wireframe: AdobeRGB):
Epson Enhanced Matte (red = sRGB):
Epson R1800 (or R800) has the following gamut with Ilford Galerie Smooth Pearl:
So the problems with AdobeRGB have been there all the time UltraChrome inks have been available.