It is not like every WR in the 2019 draft was a short/shifty MB type either, rather it seems like it was 40-50% (based on a review of the WRs drafted). Therefore it seems to be not an either / or proposition - NFL teams are not going to only covet Marquise Brown or Hakeem Butler, rather they will focus on the best talent at the position of need, and teams are more open and comfortable feeding short/shifty types. If a taller WR is equal in talent to a shorter WR, at their position of need, then they'll likely still lean height. But there is less of an emphasis on the big guy prospects that need more developmental time, and more of an appreciation (which I believe Cameron Giles has discussed) of pro-ready route running.
However that is something that has always been important to know. A team isnt going to draft an X type WR if they feel their needs are best suited by a slot guy, or they wont draft the #1 slot guy, if they are focused on the Y or X position.
In other words teams are (a) becoming more focused on drafting at the sub-position of need and (b) more open to making the slot or flanker a position of need. That may mean some of a de-emphasis of the prototypical X type, but not a dislike of them or an avoidance.
The majority of WR1s this past year were still guys like Julio Jones, Deandre Hopkins & Mike Evans. Smaller guys are becoming more prevalent as WR2s and 3s but the 2 5'10 guys that ended up as WR1s also were part of 2 highly prolific offenses with other prolific weapons with similar target shares, so it is not like 5'10 guys are the new target hogs, and Jarvis Landry shows the limitations of them in a sub-optimal situation. In other words their floor may be safer, but their ceiling will remain as blocked as any other type of WR by the volume & quality of their targets.
There were 5 WR taken in the 1st in the 2014 draft, and 12 by the end of the 2nd. So it seems based on the types of WRs that even if 1 team had not taken him another one would have, if the situations & need for WR were identical, just the top desired profile was now a 5'9-5'11 short shifty type over a 6'1-6'3 big bodied type.
Basically if you have 100 big guys and 20 small guys it looks like the big guys dominate. However if you add 60 more small guys, that doesnt lessen the # of big guys. it just gives the perception that they are less important in relation. Which is what seems to be happening. If big guys can produce or be useful right away they'll still get drafted highly (see Patriots), but if they are going to be more of a project, then maybe they'll be drafted later (see Cardinals and Packers in 2018).
So assuming the same exact 2014 class but 5 years later, I think, yes he likely would still have been a WR drafted in the same range because he was obviously one of the coveted guys at that profile, and there is still a need for that profile, and he produced right away.
