DND_Reborn
The High Aldwin
Oh, stop being so nit-picky.Well, for one thing, Bard isn't a new class. It's been around since 1e.
It has always been billed as a dabbler in spells (like everything else) though still full powered caster (i.e. CL) and that it was in actuality casting either Druid or Wizard spells depending on the edition, so overlap is expected there.
For me, it's the complete opposite. I could care less about the spell list overlap. For me, it's about the fluff of the classes and the source of their powers and their mechanical differentiation that matters.
While it's nice to have a few spells here and there that are different, it's probably the least important aspect.

Sure, "Bard" was in 1E, at the back, and most groups IME never used it. In the decades I played 1E, I saw only ONE bard played the 1E way.
So, we saw a more mainstream into in 2E, and as I said, I label it among the "newer" classes.

Regardless of how you do it, if everyone does the same thing, why bother? It is why many people argue against other classes gaining more attacks for DPR. Fighter: more attacks, Paladin: smite, Barbarian: rage, Rogue: sneak attack, Ranger: umm... hunter's mark???, Monk: flurry and such I suppose.
I know a similar idea was applied to spells in 5E. Spontaneous casting, prepared casting, warlock short rests, but it still doesn't feel like enough when the vast majority of spells can be cast by more than one caster. At least, for me...
If people are discussing trying to merge two casters classes, I don't blame them.
I do agree in many ways the eldritch invocations seem more appropriate to sorcerers and metamagic for warlocks. Without something unique, why bother?