I use a Amana Euro rip on most everything..
Jigs have three purposes, #1.. to make the task easier and #2… To save time. And #3… to make it safer..Wow, that looks nice but it would take longer to build the jig than the cabinets I want it for LOL
If I thought I'd taper more than a dozen legs a year then maybe but some of us are only weekend warriors.
This is a great project for someone young who needs content to run a youtube channel or someone old and retired that has nothing to do all day. I'm still stuck in the middle - I work all week and only get Sat and Sun in the woodshop. I want to build cabinets and doors and face frames and stuff not fancy jigs.
Looks nice though.