Hmm... Well, I'm willing to go back and re-listen to the track with this in mind, especially since I actually really did enjoy this arrangement otherwise. I'm sticking to my guns on my criticism, though, since that remains unchanged - the mixing of the leads is consistently problematic throughout the track, often getting buried completely. However, looking back at a few other decisions I'll check to see if this is actually a deal-breaking breaking issue.
Looking at this from a different perspective, while the mixing is problematic throughout, it's oftentimes a bearable issue, only really burying the lead at 1:23 - 1:46 and 1:53 - 2:30 (2:30 - 2:40 the lead is an octave out of the range of the background, helping it stand out). Much of the rest of the track the lead, while not being mixed much differently, does stand out because it doesn't share the same register as the backing instruments.
For those paying attention, this is often an easy fix if you're having issues with the lead getting buried in the middle/background: just bump the lead up an octave. Seriously, this can fix the issue about 50% of the time, since often it's less a mixing issue and more of a crowded EQ range in a soundscape. It's still a mixing issue here, sure, but having it share the same soundspace as the accompaniment really compounds the issue.
Rather than being an unbearable issue throughout the track, it's closer to being a noticeable issue throughout, with it being really problematic for about 20% of the track. Yeah, I think I might've come down a little too hard on this the first time around, but please pay attention to how you mix your leads in the future in order to save your future projects from such discrimination.
YES