Rearz and Bambino have both had a go at abdl pullups, they weren't well received and sales flopped.
Most abdl companies are quite risk averse, they all have very similar designs and if 1 company has a hit design it gets imitated by the others quite quickly but if they see a competitors product getting hated on then there not going to take a chance with that market sector.
Pullups are made on completely different machines to diapers, usually by different manufacturers, and I don't think any of the manufacturers that currently have the equipment to do printed pullups have a good enough base product to make something that will perform.