The problem starts when clubs narrow their fairways for competitions.
The problem gets exacerbated when the clubs then MOVE the bunkers in to match the new rough lines.
I don't see why narrowing fairways should necessarily have so much impact on the fairway bunkering. In most cases it should be possible to leave the fairway right next to the bunker on its side and cut off the desired width of fairway only on the other side. While this may cut off the safe route, you don't necessarily want such a route provided in major competitions.
This should work for almost all strategically relevant bunkers, while penal and directional bunkers can have rough between them and the fairway as they are not really in play for expert players anyway.
I can understand a small, second cut of rough, you know, shorter rough, between a bunker and the fairway to prevent slightly mishit shots from rolling into the bunker.
Well, the thought that a slightly mishit shot deserves milder punishment, is what you expect from penal designs. However mishits from tour pros usually are only slight ones, so the bunker is effectively out of play for them. I believe it's much more interesting to increase the "Risk-Reward-Ratio" for flirting with the bunker by having shots roll into the bunker also when they land clear but close.
On the other hand I understand stripes of rough/first cut on the setup for everyday play, as hitting huge fairway bunkers can have a detrimental effect on pace of play (Murphy's law will take care that there are either too few rakes in the first place or all rakes are in one corner of the bunker, sometimes huge detours, especially for cart riders when they have to walk from the cartpath ...).