“Well I don’t think it’s too complicated,” doesn’t really say much from someone whose profession is wrangling that complexity. “Well I don’t think it’s unappealing,” doesn’t say much from someone that has no experience wrangling the different nuanced ways different things can be appealing to different people in different contexts and how that affects the way people approach and interact with stuff.
Interface design, copywriting, branding— these are all communication mediums that deal with the emotional intangibles, instincts, and irrational tendencies we all have even when we don’t see them. It’s not about taste and aesthetic preference, they’re tools to solve communication problems. Developers on a whole have a hard enough time dealing with communication in technical documentation for software they wrote, let alone effective visual communication. I’m seeing some progress in developers realizing how much more impact software can have as a problem solving tool when designers are involved… but a whole lot still think designers just add frivolous fluff and that their quirky interfaces more informed by the API implementation than how users solve problems isn’t the problem — users failing to read their wall-o-text documentation is.