Still to this day I can't hear any similarities between those two albums. I need to give it another spin to check for some clues.
These are the most blatant to me:
https://youtu.be/WqSXhynkz7g?si=lrJr3jv3_wVJlPb7&t=26
https://youtu.be/GlhLcewMORY?si=bBlSE2LS5jBvS7P3&t=72
And at the end of both of these songs, they no longer play those instrumental breaks inbetween the vocal lines, instead playing straight through.
I don't get why people get so bothered by this stuff being brought up. It's not an accusation, it's just an acknowledgment of reality. DT's songs tend to have pretty convoluted structures, UAGM being a good example. Repeating them to such an extent in a new song (and yes, mostly with parts that do sound similar in style even if they don't share any actual notes or harmonies) will not just happen by accident. And even if it did happen once by some weird coincidence, it certainly wouldn't also happen with multiple songs on the very same album.
Let me throw in a theory of mine about all this: When DT wrote Stream of Consciousness, they had some fun with it and published a photo of their notes regarding the song structure from the studio. Stuff like "5/4 rise", "Crimson section", "Orion riff" and so on. And they challenged their fans, who hadn't heard a note of the piece yet, to write their own music just based on these notes. The resulting pieces were quite interesting and none of them sounded even remotely like the original song. So my theory is that DT, as a way of going back to the roots, figured it would be fun to do the same with their own songs from I&W - map out the structure in the style of these SoC notes, then write new music that follows the structure but doesn't actually re-use any particular riffs, melodies or harmonies. I imagine the idea was the resulting music would be stylistically close to their classic style due to the structural similarities, but still sounding fresh since the actual music used to fill those structures was entirely new.
As we all know, the songs ended sounding more similar to the originals than was the case with the SoC song contest entries, and so we quickly got guys like Thiago laying out this stuff in detail for everyone to see.