Wholly
Having competed in real Motorsport from karts to single seaters, that is exactly true to life, with any water on the track intermediates or cut slicks if they weren't available were always quicker than dry tyres. They are called dry tyres for that reason, they work best on a dry track, 0.2mm of water isn't dry.
After checking the china race you obviously put mediums on instead of intermediates, lap 9 after your pitstop you were 10 seconds slower than an opponent who pitted for inters on the same lap as you, the top 3 changed on lap 13 & 15.
The other who made the mistake and stopped on lap 39 for inters did a 1.35.426 on the last lap, another on mediums did 1.32.476 on the same lap, so the dry tyres on a dry track were still quicker.
If they going to rework it they should make dry tyres even slower on a wet track.
As I remember, developers some ages ago said what they are not going make things like in real life ("We are not a F1 game").
And I think what if there is decision between "thing as a reality" and "thing which can make game more interesting", second will be better.