Perhaps this is a result of MJR having too much creative control.
I think you've hit the nail on the head. If you look at The Odyssey and the albums before it, the other band members had quite a few writing credits, both musically and lyrically. For the last two albums, the show has been run exclusively by MJR and Russ (excluding one song co-written by P, and I'm convinced he only wrote the main piano theme of the track).
Since even deaf people can hear the amazing quality difference between their latest two efforts and the rest of their catalog, I think Lepond, P, and Rullo need to start co-writing more stuff. If the next album comes out (in 2017) and every song is written only by MJR and Russ, I think we'll know what to expect even before listening to it.
Iconoclast and PL come off as if Romeo wrote 193 riffs and decided that he was going to construct an album around them, or solely based on them; everything else is an afterthought.
It certainly seems that way for the most part. Many of these songs are riff fests, which isn't
always bad, except for the fact that several songs clearly lack
direction. For example, I had thought that the band had learned what
not to do with PL when it came to the full-band fade-outs, but I was clearly wrong. Songs like Dehumanized, Electric Messiah, and Lords of Chaos sound
awkward fading out; it's like the band couldn't bother to write a proper ending. I like the live ending in Dehumanized
far better. The only fade-out that made sense to me was Prometheus, since it's a mid-tempo groove and it fits the theme of the song. But when a song is full-speed ahead like Electric Messiah, it just
doesn't work.
Iconoclast has exactly zero outstanding songs; at least PL had Set the World on Fire and Serpent's Kiss.
I'd say Iconoclast has a few songs that are very good, but yeah, nothing is truly Odyssey, Accolade, Communion, Divine Wings, Looking Glass-level outstanding.
STWOF and Serpent's Kiss were two of my least favorite tracks from PL, and in my opinion the most generic-sounding (which is probably why they were chosen for videos, haha). However, unlike Iconoclast, PL was a much more consistent album. I may not like the two tracks above as much as the rest of the album, but they are far from filler. Iconoclast has quite a few fillers and a few below average songs.
The technology theme is clearly tacked on spuriously based on a couple of keyboard samples that were probably stumbled into in the later stages of writing.
I'm split on this. For some of the songs I would agree (the synth-style keyboard seems tacked on in End of Innocence, Heretic, Children, and Dehumanized), but other songs (Reign, Bastards, the title track) seem to be built around it.