There were 114 players in the league who caught at least 40 catches last year. On average that is around 3.5 players per team. Even if Hopkins winds up as the Texans 4th option he should be 50/50 at worst to clear 40 reception.
the Texans force the ball the Andre Johnson because the rest of the WRs, were not good WRs (when walter was his better version of himself he was 60 catch guy) As good as he is, Johnson could easily take one less catch per game still have 100 catches probably being more efficient/effective.
If you force me I will list some the unimpressive WRs in bad passing games with way worse QBs who caught 40 balls. That is not a standard of anything significant.
You really don't need to because - seriously - we have gone over this.
Teams are not alike in their make-up and their offensive philosophy.
Bad teams, for example, find themselves behind the eight-ball very often, and are forced to open up their passing game.
Some teams run a spread with more emphasis on their receivers than TEs, FB (some don't even have a FB) and RBs.
There are several reasons why things happened, and they vary for different teams.
But the Texans are not one of those teams.
It is possible that the defense might allow Kubiak to target Hopkins more, but it's not a given.
Look at Ashley Lelie, who was drafted at #19 overall by the Broncos in 2002.
He had 35 catches as a rookie and 37 in his second year, and the dude was 6'3.