Plenty of people remember real Priest, before they just started making Painkiller over and over and over again.
Mhm, yes, making Painkiller all over again. Let's see...
Angel of Retribution - includes some Painkiller-esque tracks (Demonizer - IIRC, a song written for Jugulator, Hellrider). Other than that? Judas Rising is a song written DECADES earlier, it goes way back to the Defenders of the Faith era. Worth Fighting For is closer to Point of Entry than Painkiller. Could Angel apprear on an album like Painkiller? Come on... Eulogy, Lochness - no comment.
Nostradamus - I don't think that anything needs to be explained in this case.
Redeemer of Souls - again, only few tracks sound like it's 1990 again (Halls of Valhalla, Metalizer, Battle Cry, the title track, which is basically Hell Patrol, pt. 2). Then you have a moody ballad (Beginning of the End), a rocky tune (Down in Flames), an echo of Nostradamus (Secrets of the Dead), their bluesiest track since the 70s (Crossfire), a slow burn (Hell & Back), a song that suits Ozzy's discography rather than Priest's (March of the Damned), another slow-paced song (Cold Blooded)... There are also the bonus tracks: a ballad and a few short, melodic songs. None of them would have been written for an album like Painkiller.
Firepower - again, very few Painkiller-esque songs (Firepower, Lightning Strike, Necromancer). And a lot of slower and more melodic tracks that sound like a journey to the 80s (No Surrender, Never the Heroes, Rising From Ruins...). In what reality a song like Spectre made it to the Painkiller tracklist? You tell me, I'd love to know. Lone Wolf sounds much more like rather recent Metallica's compositions, Children of the Sun perhaps does have something from Black Sabbath in its DNA. Sea of Red? Oh yeah, it's definitely a sequel to Metal Meltdown, no doubt about that.
Invincible Shield - when it comes to the vibe of the album, it's kinda similar to Firepower, although different. Panic Attack definitely reminds me of Painkiller, so does As God is My Witness. What about the rest of the songs? The title track is more inspired by Randy Rhoads' work than anything else (and if we want to stick to Priest, I'd compare it to Ram it Down, the song). Gates of Hell is, just like No Surrender, a callback to their 80s era. Crown of Horns is another slow-paced track in the vein of Worth Fighting For. The Serpent and the King is their most Stained Class-like composition since... Stained Class. The only difference is that Rob's using distortion this time. Sons of Thunder is an intentional reference to Hell Bent for Leather. Trial By Fire might be considered a distant cousin of Sword of Damocles - again, not a very aggressive tune. I don't think there's a point in proving that Giants in the Sky, Devil in Disguise (and of course The Lodger) and several other songs don't have anything in common with Painkiller because it should be obvious to anyone who knows the album.