Access sucked. It didn’t scale. You could have a small team use one database just fine, but wiring it up to the other access databases was a nightmare. Version control was practically non-existent. Corrupt databases were routine. You would often have the “expert” that created the highly specific configuration depart the organization before anyone realized they were the only ones that held knowledge of who and what was connected to it. And don’t even get me started on the awful recorded macro code or insecure VBA.
Excel is arguably worse, if only because it was more accessible for less patient people. But at least Excel doesn’t offer you an entire armory of footguns at quite the same scale as Access did.
I think it's just nostalgia for a simpler, less complicated past. We do lots of things today that would've been impossible with Access and that we now take for granted. For example, most people today expect to access their system from anywhere via the internet; pulling up a specific invoice on their phone, for instance. That just wasn't possible with Access 2000. And if you tried building a web-accessible system on top of its database, you'd essentially be starting from scratch anyway. The reality is that the web is complicated because we want endless possibilities while staying fully connected.
It did scale fine. We pointed it at SQL Server.
Version control was in issue yes but you didn't really need it because ONE PERSON could literally do all the engineering work. You just copied the MDB file and suffixed it with the date. In reality, corrupt databases were a non-issue if you didn't shove MDBs on a network share and VBA was not a security risk here because the distribution of the MDBs was controlled.