Yes, because the musician feat fills a trope for inspirational characters outside of the bard class. If I want a lower magic bard I can use the arcane trickster or eldritch knight and pick that feat up at 1st level. If I want a non-magical bard I can use that feat at 1st level on a barbarian, fighter, or rogue that doesn't use spells and have that similar bard character.I know heroic inspiration is still a thing per the rules glossary but does anyone really use it? I playtested the inspiration on a 1 rule in my family game. I could care less about it all together, the kids remembered this particular rule. I forget about it until they let me know they have it when they roll a one so I just let it float.
A feat that grants inspiration like that is something I really liked from the origins UA to open up those tropes without needing to mess with the bard class.
EDIT: I should clarify that I didn't care for how the feat compared when the bard had the inspiration use trimmed back so much, but I liked the availability to other classes and the latest bard has more inspiration again.