It's not a reflection on the coach.
Alabama and UGA players more so don't opt out because they are playing in the playoff, actually playing for something of prestige. When they aren't in the playoff their players will opt out as well.
PSU hasn't played in a meaningful bowl game since before opt outs became prevalent, which is why it's an easy choice to opt out.
And for all we know Franklin is advising the NFL projected high draft choices to opt out, which is a service to these player and their families. And from his standpoint the team may benefit more by playing the next years potential starters to have a better chance of better team performance the following year.