Well therein lies the issue as well. The only people preseason matters to is guys who never really see the field if they do make the roster, are often guys that are inactive on Sundays, etc. The % of fringe roster guys that ever actually make anything of themselves in the NFL is so minuscule that it's hard to give a shit. And the thing with taking anything from these fringe roster guys is that they're going up against other fringe roster players or players who won't even make it in the NFL past this preseason, so their accomplishments are even harder to care about.
I think a big issue with the preseason(and this isn't the NFL or preseason itself's fault, but just a fault with the NFL community) is we see all this stuff on twitter from analysts breaking down players and actually talking like it's anything meaningful, which leads the casual fan to believe at as well. I mean just looking at the Titans/Packers game, the Packers sat like 18 key players or some shit. The Titans had a few starters sitting and the ones that didn't like Mariota, Lewan, Casey, Morgan, Butler, Ryan, Byard, etc all played less than 10 snaps, so the players who did shine for the Titans and Packers, it's almost meaningless cause they did it against people that aren't even gonna make impacts on Sundays.
I know the Titans broadcast team was kinda going overboard on hyping up both Harold Landry and LeShaun Sims for the Titans. Landry was a 2nd round pick, and a 1st round talent in most people's eyes that fell due to injury concerns, and they got all hype because he bullied some backup tackle that doesn't belong on the field. LeShaun Sims is the 4th CB on this team but he's probably good enough to be the 2nd or 3rd CB on a lot of teams, just stuck behind our loaded CB depth chart, and he was making quite a few plays, think he had like 3 pass break ups among other things..but that's just it, you'd fuckin hope he'd dominate against 2nd and 3rd team QBs and WRs.
Taking anything from snaps where it's 3rd stringers vs 3rd stringers is such a weird idea to me, because I think beyond noting if they ran the play correctly/etc, there's only so much you can take from it cause they're playing against people that aren't gonna be in the NFL in a month.