You have more spells to compensate, as I said, it was not about balance to begin with…
As to the video, Google found it. It has been a while, so if you are interested enough you will have to watch it
I have watched the relevant part of that video.
Treantmonk agrees with me.
Maybe, if you're going to cite something as evidence for your claims, it would be helpful to actually check to make sure that it doesn't say exactly the opposite.
He liked
other things about the One D&D warlock. He does not, at any point, deny that this portion is a major nerf (because it is, other than the Arcane spell list), and specifically calls out that it is the illusion of a choice at every level that the 5.0 Warlock would have gained Mystic Arcana originally.
Edit: Watching further...his claims about this being better spellcasting are dependent on
my other criticisms of the existing Warlock. That it is punished by the way people actually play the game, and it
shouldn't be--that changes needed to come in order to make the Warlock actually keep up with other spellcasters. So even on that front, he doesn't actually disagree with me. Yes, I agree that this Warlock casts more spells. It is also weaker, and is specifically punished in terms of Invocations. Just because you aren't starved for the invocations you
critically need in order to make your core shtick better, doesn't mean you somehow
aren't losing those.
It is a fair criticism that I was ignoring how the Playtest 5 Warlock effectively baked one invocation into each of the three reworked Pacts. But so does the Playtest 7 version--and that one does not punish people for failing to take Mystic Arcanum, so....yeah. Point stands.
I stand by what I said. The Playtest 5 Warlock was nerfed significantly in terms of invocations. It gained access to the Arcane spell list, which was a buff, but that "no class spell list" concept was a bad design idea (there's a reason it was abandoned.) It certainly would cast more spells per day--but unless you give up half your invocations, you massively lose out in power, AND you progress spells dramatically more slowly.
Without Mystic Arcana auto-slotted at every chance, you literally do cast fewer spells per day until level 7, and don't cast more until the teens. Even
with it, you'll be casting almost exclusively fewer, weaker spells until the high single digits.
Yes, there were parts that were better and parts that were worse. But by and large,
other than the spells being daily and having the whole Arcane list? It was a massive nerf. And
particularly in terms of the Invocations, it is not possible to argue that it wasn't a nerf. Treantmonk simply declared "well, you aren't losing any of the ones you NEED, so it's not a problem." It was a problem. And that's why P7 changed it.