Gravitar isn't such a terrible idea, just look at how successful something like Linktree is. The problem with Matt's ventures in general is that they're half-assed. Wordpress.com sucks compared to Wix.com. Gutenberg sucks compared to Webflow, etc. Even WordPress sucks as a CMS which is why people even needed stuff like ACF in the first place. Like why in 2024 any CMS wouldn't have that functionality baked in makes no sense to me, unless as you say you just think of it as a blogging platform like it's 2004.
People often attack Wordpress because it’s not sufficiently current in its core. That’s actually a strength. Wordpress wouldn’t be such a large part of the web if it had been rewritten in every once hip language (Ruby etc) or tried to incorporate fad. Wordpress is a boon because it’s a solid base with massive support and institutional knowledge that can be built in in any way you imagine. It’s totally free to use if you know what you are doing and you can create almost anything with it. Wordpress will be here when the platforms you mention are gone. Does that make it quirky, less immediate and harder to use sometimes? Yes. Thats the price you pay for access.