Yep. 9th Wonder for example. He's one of my favorite BEATMAKERS but he cant craft a bridge to save his life. Most of his beats are just str8 loops throughout the entire song. I dont consider him a "producer" so to speak. He's more of a beatmaker. In my opinion The Neptunes are up there with any producers of any genre that you can name as far as pure talent. Pharrell is one of the greatest musical geniuses in modern history.
I like the comparison and I may be caping for 9th Wonder a bit, but he did a decent bridge for Girl by Destiny's Child, and just to point out 2 things.
1. I would still put 9th Wonder in the 'producer not beatmaker' category, because even though on the surface he seems like mostly a beatmaker, he has produced a lot of entire albums, started with a vision for a project and helped bring it to light from top to bottom, he coaches the vocals, he sequences the tracks, and he will bring in others to co-produce on top of his beats (he's done this a lot with David Banner, Jean Grae, and some of his Jamla artists).
2. This doesn't really have anything to do with beatmaker vs producer argument, but 9th plays like 7 or 8 musical instruments. And he's had plenty of chances to incorporate more live instrumentation into his production, but has simply chosen not to. I'm pretty sure Phonte said that was one of the things that frustrated him when Little Brother and 9th Wonder first split. Phonte was working with Nicolay, and Nicolay could do the pads but also brought in a lot of live instruments, and I think Phonte wanted to expand the musical sound of Little Brother a little bit more than what 9th Wonder wanted to do. I could be a little off on that, but if you listen to Getback (their first album without 9th) they use a lot of producers on there (Hi-Tek, Nottz, Mr. Porter, Illmind, etc.) that did boom bap shyt but also incorporated keys and other sounds, etc.