They are becoming more essential by the day.
Exactly, they are becoming essential now. They are still not essential and definitely were not essential 14 years ago. That's all I'm saying. Expecting that everyone will invest a lot of effort to support a project that does not deliver any value to vast majority of users is silly. 14 years later the need is slowly growing so the support is materializing. That should be the approach from the beginning: build something people need.
If Guitar hero set worked for you than for example this:
https://www.thomann.de/es/millenium_md_90_mobile_drum.htm
should also be fine, right? It even has two pedals. Would that be a reasonable starting point what would later let me move to full drums?